Home / 145,039.50-217,565.10-69,099

Finding the Fourth Proportional to 145,039.50, 217,565.10 and 69,099

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Solution

The fourth proportional to 145,039.50, 217,565.10 and 69,099 is: 103,651.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,039.50 : 217,565.10 = 69,099 : x
  2. Step 2: Convert to fraction form
    145,039.50/217,565.10 = 69,099/x
  3. Step 3: Cross multiply
    145,039.50x = 217,565.10 × 69,099
  4. Step 4: Simplify right side
    145,039.50x = 15,033,530,844.90
  5. Step 5: Solve for x
    x = 15,033,530,844.90/145,039.50
  6. Step 6: Final answer
    x = 103,651.29

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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.