Home / 99,249.60-148,672.80-61,694.40

Finding the Fourth Proportional to 99,249.60, 148,672.80 and 61,694.40

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Solution

The fourth proportional to 99,249.60, 148,672.80 and 61,694.40 is: 92,416.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,249.60 : 148,672.80 = 61,694.40 : x
  2. Step 2: Convert to fraction form
    99,249.60/148,672.80 = 61,694.40/x
  3. Step 3: Cross multiply
    99,249.60x = 148,672.80 × 61,694.40
  4. Step 4: Simplify right side
    99,249.60x = 9,172,279,192.32
  5. Step 5: Solve for x
    x = 9,172,279,192.32/99,249.60
  6. Step 6: Final answer
    x = 92,416.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.