Home / 125,454.74-173,160.72-77,680.94

Finding the Fourth Proportional to 125,454.74, 173,160.72 and 77,680.94

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Solution

The fourth proportional to 125,454.74, 173,160.72 and 77,680.94 is: 107,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,454.74 : 173,160.72 = 77,680.94 : x
  2. Step 2: Convert to fraction form
    125,454.74/173,160.72 = 77,680.94/x
  3. Step 3: Cross multiply
    125,454.74x = 173,160.72 × 77,680.94
  4. Step 4: Simplify right side
    125,454.74x = 13,451,286,634.87
  5. Step 5: Solve for x
    x = 13,451,286,634.87/125,454.74
  6. Step 6: Final answer
    x = 107,220.24

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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.