Home / 161,065.79-222,278.17-89,446.13

Finding the Fourth Proportional to 161,065.79, 222,278.17 and 89,446.13

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Solution

The fourth proportional to 161,065.79, 222,278.17 and 89,446.13 is: 123,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,065.79 : 222,278.17 = 89,446.13 : x
  2. Step 2: Convert to fraction form
    161,065.79/222,278.17 = 89,446.13/x
  3. Step 3: Cross multiply
    161,065.79x = 222,278.17 × 89,446.13
  4. Step 4: Simplify right side
    161,065.79x = 19,881,922,089.98
  5. Step 5: Solve for x
    x = 19,881,922,089.98/161,065.79
  6. Step 6: Final answer
    x = 123,439.76

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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.