Home / 127,076.56-175,397.58-86,309.74

Finding the Fourth Proportional to 127,076.56, 175,397.58 and 86,309.74

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Solution

The fourth proportional to 127,076.56, 175,397.58 and 86,309.74 is: 119,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,076.56 : 175,397.58 = 86,309.74 : x
  2. Step 2: Convert to fraction form
    127,076.56/175,397.58 = 86,309.74/x
  3. Step 3: Cross multiply
    127,076.56x = 175,397.58 × 86,309.74
  4. Step 4: Simplify right side
    127,076.56x = 15,138,519,526.43
  5. Step 5: Solve for x
    x = 15,138,519,526.43/127,076.56
  6. Step 6: Final answer
    x = 119,129.13

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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.