Home / 125,961.28-173,820.96-72,207.76

Finding the Fourth Proportional to 125,961.28, 173,820.96 and 72,207.76

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Solution

The fourth proportional to 125,961.28, 173,820.96 and 72,207.76 is: 99,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,961.28 : 173,820.96 = 72,207.76 : x
  2. Step 2: Convert to fraction form
    125,961.28/173,820.96 = 72,207.76/x
  3. Step 3: Cross multiply
    125,961.28x = 173,820.96 × 72,207.76
  4. Step 4: Simplify right side
    125,961.28x = 12,551,222,162.65
  5. Step 5: Solve for x
    x = 12,551,222,162.65/125,961.28
  6. Step 6: Final answer
    x = 99,643.49

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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.