Home / 127,340.64-175,663.68-86,490.24

Finding the Fourth Proportional to 127,340.64, 175,663.68 and 86,490.24

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Solution

The fourth proportional to 127,340.64, 175,663.68 and 86,490.24 is: 119,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.64 : 175,663.68 = 86,490.24 : x
  2. Step 2: Convert to fraction form
    127,340.64/175,663.68 = 86,490.24/x
  3. Step 3: Cross multiply
    127,340.64x = 175,663.68 × 86,490.24
  4. Step 4: Simplify right side
    127,340.64x = 15,193,193,842.48
  5. Step 5: Solve for x
    x = 15,193,193,842.48/127,340.64
  6. Step 6: Final answer
    x = 119,311.43

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1.5x scale

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.