Home / 131,770.28-181,842.91-71,341.45

Finding the Fourth Proportional to 131,770.28, 181,842.91 and 71,341.45

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Solution

The fourth proportional to 131,770.28, 181,842.91 and 71,341.45 is: 98,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,770.28 : 181,842.91 = 71,341.45 : x
  2. Step 2: Convert to fraction form
    131,770.28/181,842.91 = 71,341.45/x
  3. Step 3: Cross multiply
    131,770.28x = 181,842.91 × 71,341.45
  4. Step 4: Simplify right side
    131,770.28x = 12,972,936,238.66
  5. Step 5: Solve for x
    x = 12,972,936,238.66/131,770.28
  6. Step 6: Final answer
    x = 98,451.15

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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.