Home / 558,820.77-838,222.96-138,096.65

Finding the Fourth Proportional to 558,820.77, 838,222.96 and 138,096.65

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Solution

The fourth proportional to 558,820.77, 838,222.96 and 138,096.65 is: 207,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,820.77 : 838,222.96 = 138,096.65 : x
  2. Step 2: Convert to fraction form
    558,820.77/838,222.96 = 138,096.65/x
  3. Step 3: Cross multiply
    558,820.77x = 838,222.96 × 138,096.65
  4. Step 4: Simplify right side
    558,820.77x = 115,755,782,729.08
  5. Step 5: Solve for x
    x = 115,755,782,729.08/558,820.77
  6. Step 6: Final answer
    x = 207,142.95

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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.