Home / 125,917.28-173,766.48-72,204.32

Finding the Fourth Proportional to 125,917.28, 173,766.48 and 72,204.32

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Solution

The fourth proportional to 125,917.28, 173,766.48 and 72,204.32 is: 99,642.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,917.28 : 173,766.48 = 72,204.32 : x
  2. Step 2: Convert to fraction form
    125,917.28/173,766.48 = 72,204.32/x
  3. Step 3: Cross multiply
    125,917.28x = 173,766.48 × 72,204.32
  4. Step 4: Simplify right side
    125,917.28x = 12,546,690,527.19
  5. Step 5: Solve for x
    x = 12,546,690,527.19/125,917.28
  6. Step 6: Final answer
    x = 99,642.32

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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.