Home / 161,139.13-222,377.80-93,177.43

Finding the Fourth Proportional to 161,139.13, 222,377.80 and 93,177.43

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Solution

The fourth proportional to 161,139.13, 222,377.80 and 93,177.43 is: 128,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,139.13 : 222,377.80 = 93,177.43 : x
  2. Step 2: Convert to fraction form
    161,139.13/222,377.80 = 93,177.43/x
  3. Step 3: Cross multiply
    161,139.13x = 222,377.80 × 93,177.43
  4. Step 4: Simplify right side
    161,139.13x = 20,720,591,893.05
  5. Step 5: Solve for x
    x = 20,720,591,893.05/161,139.13
  6. Step 6: Final answer
    x = 128,588.21

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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.