Home / 215,405.18-297,299.01-124,761.12

Finding the Fourth Proportional to 215,405.18, 297,299.01 and 124,761.12

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Solution

The fourth proportional to 215,405.18, 297,299.01 and 124,761.12 is: 172,193.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,405.18 : 297,299.01 = 124,761.12 : x
  2. Step 2: Convert to fraction form
    215,405.18/297,299.01 = 124,761.12/x
  3. Step 3: Cross multiply
    215,405.18x = 297,299.01 × 124,761.12
  4. Step 4: Simplify right side
    215,405.18x = 37,091,357,462.49
  5. Step 5: Solve for x
    x = 37,091,357,462.49/215,405.18
  6. Step 6: Final answer
    x = 172,193.43

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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.