Home / 115,440,748.80-173,161,123.20-105,027,129.60

Finding the Fourth Proportional to 115,440,748.80, 173,161,123.20 and 105,027,129.60

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Solution

The fourth proportional to 115,440,748.80, 173,161,123.20 and 105,027,129.60 is: 157,540,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440,748.80 : 173,161,123.20 = 105,027,129.60 : x
  2. Step 2: Convert to fraction form
    115,440,748.80/173,161,123.20 = 105,027,129.60/x
  3. Step 3: Cross multiply
    115,440,748.80x = 173,161,123.20 × 105,027,129.60
  4. Step 4: Simplify right side
    115,440,748.80x = 18,186,615,728,007,964
  5. Step 5: Solve for x
    x = 18,186,615,728,007,964/115,440,748.80
  6. Step 6: Final answer
    x = 157,540,694.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.