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Finding the Fourth Proportional to 125,388.40, 173,036.20 and 68,800.20

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Solution

The fourth proportional to 125,388.40, 173,036.20 and 68,800.20 is: 94,944.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,388.40 : 173,036.20 = 68,800.20 : x
  2. Step 2: Convert to fraction form
    125,388.40/173,036.20 = 68,800.20/x
  3. Step 3: Cross multiply
    125,388.40x = 173,036.20 × 68,800.20
  4. Step 4: Simplify right side
    125,388.40x = 11,904,925,167.24
  5. Step 5: Solve for x
    x = 11,904,925,167.24/125,388.40
  6. Step 6: Final answer
    x = 94,944.39

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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.