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Finding the Fourth Proportional to 159,857.43, 220,603.28 and 88,237.47

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Solution

The fourth proportional to 159,857.43, 220,603.28 and 88,237.47 is: 121,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,857.43 : 220,603.28 = 88,237.47 : x
  2. Step 2: Convert to fraction form
    159,857.43/220,603.28 = 88,237.47/x
  3. Step 3: Cross multiply
    159,857.43x = 220,603.28 × 88,237.47
  4. Step 4: Simplify right side
    159,857.43x = 19,465,474,859.71
  5. Step 5: Solve for x
    x = 19,465,474,859.71/159,857.43
  6. Step 6: Final answer
    x = 121,767.72

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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.