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Finding the Fourth Proportional to 99,302.58, 137,003.13 and 63,513.54

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Solution

The fourth proportional to 99,302.58, 137,003.13 and 63,513.54 is: 87,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,302.58 : 137,003.13 = 63,513.54 : x
  2. Step 2: Convert to fraction form
    99,302.58/137,003.13 = 63,513.54/x
  3. Step 3: Cross multiply
    99,302.58x = 137,003.13 × 63,513.54
  4. Step 4: Simplify right side
    99,302.58x = 8,701,553,777.38
  5. Step 5: Solve for x
    x = 8,701,553,777.38/99,302.58
  6. Step 6: Final answer
    x = 87,626.66

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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.