Home / 127,090.15-175,311.54-79,260.46

Finding the Fourth Proportional to 127,090.15, 175,311.54 and 79,260.46

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Solution

The fourth proportional to 127,090.15, 175,311.54 and 79,260.46 is: 109,333.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,090.15 : 175,311.54 = 79,260.46 : x
  2. Step 2: Convert to fraction form
    127,090.15/175,311.54 = 79,260.46/x
  3. Step 3: Cross multiply
    127,090.15x = 175,311.54 × 79,260.46
  4. Step 4: Simplify right side
    127,090.15x = 13,895,272,865.43
  5. Step 5: Solve for x
    x = 13,895,272,865.43/127,090.15
  6. Step 6: Final answer
    x = 109,333.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.