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Finding the Fourth Proportional to 159,626.88, 220,275 and 88,007.40

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Solution

The fourth proportional to 159,626.88, 220,275 and 88,007.40 is: 121,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,626.88 : 220,275 = 88,007.40 : x
  2. Step 2: Convert to fraction form
    159,626.88/220,275 = 88,007.40/x
  3. Step 3: Cross multiply
    159,626.88x = 220,275 × 88,007.40
  4. Step 4: Simplify right side
    159,626.88x = 19,385,830,035
  5. Step 5: Solve for x
    x = 19,385,830,035/159,626.88
  6. Step 6: Final answer
    x = 121,444.65

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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.