Home / 252,126.08-378,234.10-83,656.52

Finding the Fourth Proportional to 252,126.08, 378,234.10 and 83,656.52

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Solution

The fourth proportional to 252,126.08, 378,234.10 and 83,656.52 is: 125,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,126.08 : 378,234.10 = 83,656.52 : x
  2. Step 2: Convert to fraction form
    252,126.08/378,234.10 = 83,656.52/x
  3. Step 3: Cross multiply
    252,126.08x = 378,234.10 × 83,656.52
  4. Step 4: Simplify right side
    252,126.08x = 31,641,748,551.33
  5. Step 5: Solve for x
    x = 31,641,748,551.33/252,126.08
  6. Step 6: Final answer
    x = 125,499.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.