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Finding the Fourth Proportional to 115,897.03, 159,919.62 and 67,506.92

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Solution

The fourth proportional to 115,897.03, 159,919.62 and 67,506.92 is: 93,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,897.03 : 159,919.62 = 67,506.92 : x
  2. Step 2: Convert to fraction form
    115,897.03/159,919.62 = 67,506.92/x
  3. Step 3: Cross multiply
    115,897.03x = 159,919.62 × 67,506.92
  4. Step 4: Simplify right side
    115,897.03x = 10,795,680,362.94
  5. Step 5: Solve for x
    x = 10,795,680,362.94/115,897.03
  6. Step 6: Final answer
    x = 93,148.90

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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.