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Finding the Fourth Proportional to 125,944, 173,787.52 and 72,226.24

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Solution

The fourth proportional to 125,944, 173,787.52 and 72,226.24 is: 99,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,944 : 173,787.52 = 72,226.24 : x
  2. Step 2: Convert to fraction form
    125,944/173,787.52 = 72,226.24/x
  3. Step 3: Cross multiply
    125,944x = 173,787.52 × 72,226.24
  4. Step 4: Simplify right side
    125,944x = 12,552,019,128.52
  5. Step 5: Solve for x
    x = 12,552,019,128.52/125,944
  6. Step 6: Final answer
    x = 99,663.49

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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.