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Finding the Fourth Proportional to 99,630.01, 137,491.97 and 56,608.08

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Solution

The fourth proportional to 99,630.01, 137,491.97 and 56,608.08 is: 78,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,630.01 : 137,491.97 = 56,608.08 : x
  2. Step 2: Convert to fraction form
    99,630.01/137,491.97 = 56,608.08/x
  3. Step 3: Cross multiply
    99,630.01x = 137,491.97 × 56,608.08
  4. Step 4: Simplify right side
    99,630.01x = 7,783,156,437.12
  5. Step 5: Solve for x
    x = 7,783,156,437.12/99,630.01
  6. Step 6: Final answer
    x = 78,120.60

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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.