Home / 215,503.02-297,375.12-124,830

Finding the Fourth Proportional to 215,503.02, 297,375.12 and 124,830

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Solution

The fourth proportional to 215,503.02, 297,375.12 and 124,830 is: 172,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,503.02 : 297,375.12 = 124,830 : x
  2. Step 2: Convert to fraction form
    215,503.02/297,375.12 = 124,830/x
  3. Step 3: Cross multiply
    215,503.02x = 297,375.12 × 124,830
  4. Step 4: Simplify right side
    215,503.02x = 37,121,336,229.60
  5. Step 5: Solve for x
    x = 37,121,336,229.60/215,503.02
  6. Step 6: Final answer
    x = 172,254.37

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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.