Home / 161,433.47-222,781.17-89,820.17

Finding the Fourth Proportional to 161,433.47, 222,781.17 and 89,820.17

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Solution

The fourth proportional to 161,433.47, 222,781.17 and 89,820.17 is: 123,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,433.47 : 222,781.17 = 89,820.17 : x
  2. Step 2: Convert to fraction form
    161,433.47/222,781.17 = 89,820.17/x
  3. Step 3: Cross multiply
    161,433.47x = 222,781.17 × 89,820.17
  4. Step 4: Simplify right side
    161,433.47x = 20,010,242,562.20
  5. Step 5: Solve for x
    x = 20,010,242,562.20/161,433.47
  6. Step 6: Final answer
    x = 123,953.49

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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.