Home / 127,421.38-175,863.09-73,738.90

Finding the Fourth Proportional to 127,421.38, 175,863.09 and 73,738.90

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Solution

The fourth proportional to 127,421.38, 175,863.09 and 73,738.90 is: 101,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,421.38 : 175,863.09 = 73,738.90 : x
  2. Step 2: Convert to fraction form
    127,421.38/175,863.09 = 73,738.90/x
  3. Step 3: Cross multiply
    127,421.38x = 175,863.09 × 73,738.90
  4. Step 4: Simplify right side
    127,421.38x = 12,967,950,807.20
  5. Step 5: Solve for x
    x = 12,967,950,807.20/127,421.38
  6. Step 6: Final answer
    x = 101,772.17

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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.