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Finding the Fourth Proportional to 121,352.31, 181,079.08 and 108,743.94

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Solution

The fourth proportional to 121,352.31, 181,079.08 and 108,743.94 is: 162,265.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,352.31 : 181,079.08 = 108,743.94 : x
  2. Step 2: Convert to fraction form
    121,352.31/181,079.08 = 108,743.94/x
  3. Step 3: Cross multiply
    121,352.31x = 181,079.08 × 108,743.94
  4. Step 4: Simplify right side
    121,352.31x = 19,691,252,338.92
  5. Step 5: Solve for x
    x = 19,691,252,338.92/121,352.31
  6. Step 6: Final answer
    x = 162,265.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.