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Finding the Fourth Proportional to 159,864.64, 220,612 and 88,244.64

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Solution

The fourth proportional to 159,864.64, 220,612 and 88,244.64 is: 121,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,864.64 : 220,612 = 88,244.64 : x
  2. Step 2: Convert to fraction form
    159,864.64/220,612 = 88,244.64/x
  3. Step 3: Cross multiply
    159,864.64x = 220,612 × 88,244.64
  4. Step 4: Simplify right side
    159,864.64x = 19,467,826,519.68
  5. Step 5: Solve for x
    x = 19,467,826,519.68/159,864.64
  6. Step 6: Final answer
    x = 121,776.94

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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.