Home / 99,516.60-137,328.30-54,194.40

Finding the Fourth Proportional to 99,516.60, 137,328.30 and 54,194.40

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Solution

The fourth proportional to 99,516.60, 137,328.30 and 54,194.40 is: 74,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,516.60 : 137,328.30 = 54,194.40 : x
  2. Step 2: Convert to fraction form
    99,516.60/137,328.30 = 54,194.40/x
  3. Step 3: Cross multiply
    99,516.60x = 137,328.30 × 54,194.40
  4. Step 4: Simplify right side
    99,516.60x = 7,442,424,821.52
  5. Step 5: Solve for x
    x = 7,442,424,821.52/99,516.60
  6. Step 6: Final answer
    x = 74,785.76

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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.