Home / 99,520.60-137,333.80-54,198.40

Finding the Fourth Proportional to 99,520.60, 137,333.80 and 54,198.40

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Solution

The fourth proportional to 99,520.60, 137,333.80 and 54,198.40 is: 74,791.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,520.60 : 137,333.80 = 54,198.40 : x
  2. Step 2: Convert to fraction form
    99,520.60/137,333.80 = 54,198.40/x
  3. Step 3: Cross multiply
    99,520.60x = 137,333.80 × 54,198.40
  4. Step 4: Simplify right side
    99,520.60x = 7,443,272,225.92
  5. Step 5: Solve for x
    x = 7,443,272,225.92/99,520.60
  6. Step 6: Final answer
    x = 74,791.27

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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.