Home / 156,346.38-215,740.74-88,363.34

Finding the Fourth Proportional to 156,346.38, 215,740.74 and 88,363.34

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Solution

The fourth proportional to 156,346.38, 215,740.74 and 88,363.34 is: 121,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,346.38 : 215,740.74 = 88,363.34 : x
  2. Step 2: Convert to fraction form
    156,346.38/215,740.74 = 88,363.34/x
  3. Step 3: Cross multiply
    156,346.38x = 215,740.74 × 88,363.34
  4. Step 4: Simplify right side
    156,346.38x = 19,063,572,360.47
  5. Step 5: Solve for x
    x = 19,063,572,360.47/156,346.38
  6. Step 6: Final answer
    x = 121,931.65

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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.