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Finding the Fourth Proportional to 99,745.98, 137,524.95 and 63,877.02

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Solution

The fourth proportional to 99,745.98, 137,524.95 and 63,877.02 is: 88,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,745.98 : 137,524.95 = 63,877.02 : x
  2. Step 2: Convert to fraction form
    99,745.98/137,524.95 = 63,877.02/x
  3. Step 3: Cross multiply
    99,745.98x = 137,524.95 × 63,877.02
  4. Step 4: Simplify right side
    99,745.98x = 8,784,683,981.65
  5. Step 5: Solve for x
    x = 8,784,683,981.65/99,745.98
  6. Step 6: Final answer
    x = 88,070.56

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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.