Home / 99,511.50-137,323.90-54,190.02

Finding the Fourth Proportional to 99,511.50, 137,323.90 and 54,190.02

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Solution

The fourth proportional to 99,511.50, 137,323.90 and 54,190.02 is: 74,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,511.50 : 137,323.90 = 54,190.02 : x
  2. Step 2: Convert to fraction form
    99,511.50/137,323.90 = 54,190.02/x
  3. Step 3: Cross multiply
    99,511.50x = 137,323.90 × 54,190.02
  4. Step 4: Simplify right side
    99,511.50x = 7,441,584,887.48
  5. Step 5: Solve for x
    x = 7,441,584,887.48/99,511.50
  6. Step 6: Final answer
    x = 74,781.15

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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.