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Finding the Fourth Proportional to 159,855.74, 220,600.95 and 88,235.79

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Solution

The fourth proportional to 159,855.74, 220,600.95 and 88,235.79 is: 121,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,855.74 : 220,600.95 = 88,235.79 : x
  2. Step 2: Convert to fraction form
    159,855.74/220,600.95 = 88,235.79/x
  3. Step 3: Cross multiply
    159,855.74x = 220,600.95 × 88,235.79
  4. Step 4: Simplify right side
    159,855.74x = 19,464,898,767.12
  5. Step 5: Solve for x
    x = 19,464,898,767.12/159,855.74
  6. Step 6: Final answer
    x = 121,765.40

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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.