Home / 99,103.17-136,705.18-63,252.78

Finding the Fourth Proportional to 99,103.17, 136,705.18 and 63,252.78

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Solution

The fourth proportional to 99,103.17, 136,705.18 and 63,252.78 is: 87,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,103.17 : 136,705.18 = 63,252.78 : x
  2. Step 2: Convert to fraction form
    99,103.17/136,705.18 = 63,252.78/x
  3. Step 3: Cross multiply
    99,103.17x = 136,705.18 × 63,252.78
  4. Step 4: Simplify right side
    99,103.17x = 8,646,982,675.40
  5. Step 5: Solve for x
    x = 8,646,982,675.40/99,103.17
  6. Step 6: Final answer
    x = 87,252.33

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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.