Home / 145,911.96-218,867.85-112,680.36

Finding the Fourth Proportional to 145,911.96, 218,867.85 and 112,680.36

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Solution

The fourth proportional to 145,911.96, 218,867.85 and 112,680.36 is: 169,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,911.96 : 218,867.85 = 112,680.36 : x
  2. Step 2: Convert to fraction form
    145,911.96/218,867.85 = 112,680.36/x
  3. Step 3: Cross multiply
    145,911.96x = 218,867.85 × 112,680.36
  4. Step 4: Simplify right side
    145,911.96x = 24,662,108,130.43
  5. Step 5: Solve for x
    x = 24,662,108,130.43/145,911.96
  6. Step 6: Final answer
    x = 169,020.47

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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.