Home / 127,120.11-175,423.98-70,531.71

Finding the Fourth Proportional to 127,120.11, 175,423.98 and 70,531.71

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Solution

The fourth proportional to 127,120.11, 175,423.98 and 70,531.71 is: 97,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,120.11 : 175,423.98 = 70,531.71 : x
  2. Step 2: Convert to fraction form
    127,120.11/175,423.98 = 70,531.71/x
  3. Step 3: Cross multiply
    127,120.11x = 175,423.98 × 70,531.71
  4. Step 4: Simplify right side
    127,120.11x = 12,372,953,284.41
  5. Step 5: Solve for x
    x = 12,372,953,284.41/127,120.11
  6. Step 6: Final answer
    x = 97,332.78

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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.