Home / 89,240.20-133,925.04-71,919.16

Finding the Fourth Proportional to 89,240.20, 133,925.04 and 71,919.16

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Solution

The fourth proportional to 89,240.20, 133,925.04 and 71,919.16 is: 107,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,240.20 : 133,925.04 = 71,919.16 : x
  2. Step 2: Convert to fraction form
    89,240.20/133,925.04 = 71,919.16/x
  3. Step 3: Cross multiply
    89,240.20x = 133,925.04 × 71,919.16
  4. Step 4: Simplify right side
    89,240.20x = 9,631,776,379.77
  5. Step 5: Solve for x
    x = 9,631,776,379.77/89,240.20
  6. Step 6: Final answer
    x = 107,930.91

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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.