Home / 99,452.23-137,241.90-54,129.08

Finding the Fourth Proportional to 99,452.23, 137,241.90 and 54,129.08

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Solution

The fourth proportional to 99,452.23, 137,241.90 and 54,129.08 is: 74,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,452.23 : 137,241.90 = 54,129.08 : x
  2. Step 2: Convert to fraction form
    99,452.23/137,241.90 = 54,129.08/x
  3. Step 3: Cross multiply
    99,452.23x = 137,241.90 × 54,129.08
  4. Step 4: Simplify right side
    99,452.23x = 7,428,778,127.56
  5. Step 5: Solve for x
    x = 7,428,778,127.56/99,452.23
  6. Step 6: Final answer
    x = 74,696.95

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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.