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Finding the Fourth Proportional to 159,969.30, 240,002.55 and 89,801.70

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Solution

The fourth proportional to 159,969.30, 240,002.55 and 89,801.70 is: 134,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,969.30 : 240,002.55 = 89,801.70 : x
  2. Step 2: Convert to fraction form
    159,969.30/240,002.55 = 89,801.70/x
  3. Step 3: Cross multiply
    159,969.30x = 240,002.55 × 89,801.70
  4. Step 4: Simplify right side
    159,969.30x = 21,552,636,994.34
  5. Step 5: Solve for x
    x = 21,552,636,994.34/159,969.30
  6. Step 6: Final answer
    x = 134,729.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.