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Finding the Fourth Proportional to 161,565.92, 222,963.84 and 88,972.16

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Solution

The fourth proportional to 161,565.92, 222,963.84 and 88,972.16 is: 122,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,565.92 : 222,963.84 = 88,972.16 : x
  2. Step 2: Convert to fraction form
    161,565.92/222,963.84 = 88,972.16/x
  3. Step 3: Cross multiply
    161,565.92x = 222,963.84 × 88,972.16
  4. Step 4: Simplify right side
    161,565.92x = 19,837,574,446.69
  5. Step 5: Solve for x
    x = 19,837,574,446.69/161,565.92
  6. Step 6: Final answer
    x = 122,783.16

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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.