Home / 99,514.20-137,329.38-54,191.46

Finding the Fourth Proportional to 99,514.20, 137,329.38 and 54,191.46

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Solution

The fourth proportional to 99,514.20, 137,329.38 and 54,191.46 is: 74,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,514.20 : 137,329.38 = 54,191.46 : x
  2. Step 2: Convert to fraction form
    99,514.20/137,329.38 = 54,191.46/x
  3. Step 3: Cross multiply
    99,514.20x = 137,329.38 × 54,191.46
  4. Step 4: Simplify right side
    99,514.20x = 7,442,079,603.09
  5. Step 5: Solve for x
    x = 7,442,079,603.09/99,514.20
  6. Step 6: Final answer
    x = 74,784.10

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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.