Home / 558,818.77-838,219.96-138,094.65

Finding the Fourth Proportional to 558,818.77, 838,219.96 and 138,094.65

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Solution

The fourth proportional to 558,818.77, 838,219.96 and 138,094.65 is: 207,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,818.77 : 838,219.96 = 138,094.65 : x
  2. Step 2: Convert to fraction form
    558,818.77/838,219.96 = 138,094.65/x
  3. Step 3: Cross multiply
    558,818.77x = 838,219.96 × 138,094.65
  4. Step 4: Simplify right side
    558,818.77x = 115,753,691,999.21
  5. Step 5: Solve for x
    x = 115,753,691,999.21/558,818.77
  6. Step 6: Final answer
    x = 207,139.95

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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.