Home / 121,432.29-181,221.06-108,146.27

Finding the Fourth Proportional to 121,432.29, 181,221.06 and 108,146.27

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Solution

The fourth proportional to 121,432.29, 181,221.06 and 108,146.27 is: 161,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,432.29 : 181,221.06 = 108,146.27 : x
  2. Step 2: Convert to fraction form
    121,432.29/181,221.06 = 108,146.27/x
  3. Step 3: Cross multiply
    121,432.29x = 181,221.06 × 108,146.27
  4. Step 4: Simplify right side
    121,432.29x = 19,598,380,778.34
  5. Step 5: Solve for x
    x = 19,598,380,778.34/121,432.29
  6. Step 6: Final answer
    x = 161,393.49

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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.