Home / 131,617.69-181,631.68-71,187.87

Finding the Fourth Proportional to 131,617.69, 181,631.68 and 71,187.87

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Solution

The fourth proportional to 131,617.69, 181,631.68 and 71,187.87 is: 98,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,617.69 : 181,631.68 = 71,187.87 : x
  2. Step 2: Convert to fraction form
    131,617.69/181,631.68 = 71,187.87/x
  3. Step 3: Cross multiply
    131,617.69x = 181,631.68 × 71,187.87
  4. Step 4: Simplify right side
    131,617.69x = 12,929,972,423.72
  5. Step 5: Solve for x
    x = 12,929,972,423.72/131,617.69
  6. Step 6: Final answer
    x = 98,238.86

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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.