Home / 215,403.18-297,296.25-124,759.12

Finding the Fourth Proportional to 215,403.18, 297,296.25 and 124,759.12

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Solution

The fourth proportional to 215,403.18, 297,296.25 and 124,759.12 is: 172,190.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,403.18 : 297,296.25 = 124,759.12 : x
  2. Step 2: Convert to fraction form
    215,403.18/297,296.25 = 124,759.12/x
  3. Step 3: Cross multiply
    215,403.18x = 297,296.25 × 124,759.12
  4. Step 4: Simplify right side
    215,403.18x = 37,090,419,875.49
  5. Step 5: Solve for x
    x = 37,090,419,875.49/215,403.18
  6. Step 6: Final answer
    x = 172,190.68

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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.