Home / 98,151.35-135,445.91-54,543.75

Finding the Fourth Proportional to 98,151.35, 135,445.91 and 54,543.75

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Solution

The fourth proportional to 98,151.35, 135,445.91 and 54,543.75 is: 75,268.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,151.35 : 135,445.91 = 54,543.75 : x
  2. Step 2: Convert to fraction form
    98,151.35/135,445.91 = 54,543.75/x
  3. Step 3: Cross multiply
    98,151.35x = 135,445.91 × 54,543.75
  4. Step 4: Simplify right side
    98,151.35x = 7,387,727,961.79
  5. Step 5: Solve for x
    x = 7,387,727,961.79/98,151.35
  6. Step 6: Final answer
    x = 75,268.74

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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.