Home / 156,070.20-215,377.62-88,090.05

Finding the Fourth Proportional to 156,070.20, 215,377.62 and 88,090.05

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Solution

The fourth proportional to 156,070.20, 215,377.62 and 88,090.05 is: 121,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,070.20 : 215,377.62 = 88,090.05 : x
  2. Step 2: Convert to fraction form
    156,070.20/215,377.62 = 88,090.05/x
  3. Step 3: Cross multiply
    156,070.20x = 215,377.62 × 88,090.05
  4. Step 4: Simplify right side
    156,070.20x = 18,972,625,314.68
  5. Step 5: Solve for x
    x = 18,972,625,314.68/156,070.20
  6. Step 6: Final answer
    x = 121,564.69

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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.