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Finding the Fourth Proportional to 159,245.67, 219,766.25 and 98,835.77

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Solution

The fourth proportional to 159,245.67, 219,766.25 and 98,835.77 is: 136,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,245.67 : 219,766.25 = 98,835.77 : x
  2. Step 2: Convert to fraction form
    159,245.67/219,766.25 = 98,835.77/x
  3. Step 3: Cross multiply
    159,245.67x = 219,766.25 × 98,835.77
  4. Step 4: Simplify right side
    159,245.67x = 21,720,766,538.76
  5. Step 5: Solve for x
    x = 21,720,766,538.76/159,245.67
  6. Step 6: Final answer
    x = 136,397.85

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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.