Home / 99,493.20-137,300.40-54,170.46

Finding the Fourth Proportional to 99,493.20, 137,300.40 and 54,170.46

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Solution

The fourth proportional to 99,493.20, 137,300.40 and 54,170.46 is: 74,755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,493.20 : 137,300.40 = 54,170.46 : x
  2. Step 2: Convert to fraction form
    99,493.20/137,300.40 = 54,170.46/x
  3. Step 3: Cross multiply
    99,493.20x = 137,300.40 × 54,170.46
  4. Step 4: Simplify right side
    99,493.20x = 7,437,625,826.18
  5. Step 5: Solve for x
    x = 7,437,625,826.18/99,493.20
  6. Step 6: Final answer
    x = 74,755.12

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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.