Home / 131,707.46-181,756.30-71,278.11

Finding the Fourth Proportional to 131,707.46, 181,756.30 and 71,278.11

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Solution

The fourth proportional to 131,707.46, 181,756.30 and 71,278.11 is: 98,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,707.46 : 181,756.30 = 71,278.11 : x
  2. Step 2: Convert to fraction form
    131,707.46/181,756.30 = 71,278.11/x
  3. Step 3: Cross multiply
    131,707.46x = 181,756.30 × 71,278.11
  4. Step 4: Simplify right side
    131,707.46x = 12,955,245,544.59
  5. Step 5: Solve for x
    x = 12,955,245,544.59/131,707.46
  6. Step 6: Final answer
    x = 98,363.79

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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.