Home / 127,687.77-176,207.05-70,332.55

Finding the Fourth Proportional to 127,687.77, 176,207.05 and 70,332.55

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Solution

The fourth proportional to 127,687.77, 176,207.05 and 70,332.55 is: 97,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,687.77 : 176,207.05 = 70,332.55 : x
  2. Step 2: Convert to fraction form
    127,687.77/176,207.05 = 70,332.55/x
  3. Step 3: Cross multiply
    127,687.77x = 176,207.05 × 70,332.55
  4. Step 4: Simplify right side
    127,687.77x = 12,393,091,397.42
  5. Step 5: Solve for x
    x = 12,393,091,397.42/127,687.77
  6. Step 6: Final answer
    x = 97,057.78

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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.