Home / 161,225.12-222,489.05-89,603.70

Finding the Fourth Proportional to 161,225.12, 222,489.05 and 89,603.70

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Solution

The fourth proportional to 161,225.12, 222,489.05 and 89,603.70 is: 123,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,225.12 : 222,489.05 = 89,603.70 : x
  2. Step 2: Convert to fraction form
    161,225.12/222,489.05 = 89,603.70/x
  3. Step 3: Cross multiply
    161,225.12x = 222,489.05 × 89,603.70
  4. Step 4: Simplify right side
    161,225.12x = 19,935,841,641.47
  5. Step 5: Solve for x
    x = 19,935,841,641.47/161,225.12
  6. Step 6: Final answer
    x = 123,652.21

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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.