Home / 88,891.30-133,142.55-69,013.90

Finding the Fourth Proportional to 88,891.30, 133,142.55 and 69,013.90

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Solution

The fourth proportional to 88,891.30, 133,142.55 and 69,013.90 is: 103,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,891.30 : 133,142.55 = 69,013.90 : x
  2. Step 2: Convert to fraction form
    88,891.30/133,142.55 = 69,013.90/x
  3. Step 3: Cross multiply
    88,891.30x = 133,142.55 × 69,013.90
  4. Step 4: Simplify right side
    88,891.30x = 9,188,686,631.45
  5. Step 5: Solve for x
    x = 9,188,686,631.45/88,891.30
  6. Step 6: Final answer
    x = 103,369.92

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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.