Home / 125,454.04-173,207.70-77,758.12

Finding the Fourth Proportional to 125,454.04, 173,207.70 and 77,758.12

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Solution

The fourth proportional to 125,454.04, 173,207.70 and 77,758.12 is: 107,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,454.04 : 173,207.70 = 77,758.12 : x
  2. Step 2: Convert to fraction form
    125,454.04/173,207.70 = 77,758.12/x
  3. Step 3: Cross multiply
    125,454.04x = 173,207.70 × 77,758.12
  4. Step 4: Simplify right side
    125,454.04x = 13,468,305,121.52
  5. Step 5: Solve for x
    x = 13,468,305,121.52/125,454.04
  6. Step 6: Final answer
    x = 107,356.49

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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.