Home / 98,042.14-135,421.47-80,876.71

Finding the Fourth Proportional to 98,042.14, 135,421.47 and 80,876.71

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Solution

The fourth proportional to 98,042.14, 135,421.47 and 80,876.71 is: 111,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,042.14 : 135,421.47 = 80,876.71 : x
  2. Step 2: Convert to fraction form
    98,042.14/135,421.47 = 80,876.71/x
  3. Step 3: Cross multiply
    98,042.14x = 135,421.47 × 80,876.71
  4. Step 4: Simplify right side
    98,042.14x = 10,952,442,618.41
  5. Step 5: Solve for x
    x = 10,952,442,618.41/98,042.14
  6. Step 6: Final answer
    x = 111,711.59

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1.5x scale

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.