Home / 131,275.49-181,163.84-80,287.34

Finding the Fourth Proportional to 131,275.49, 181,163.84 and 80,287.34

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Solution

The fourth proportional to 131,275.49, 181,163.84 and 80,287.34 is: 110,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,275.49 : 181,163.84 = 80,287.34 : x
  2. Step 2: Convert to fraction form
    131,275.49/181,163.84 = 80,287.34/x
  3. Step 3: Cross multiply
    131,275.49x = 181,163.84 × 80,287.34
  4. Step 4: Simplify right side
    131,275.49x = 14,545,161,510.53
  5. Step 5: Solve for x
    x = 14,545,161,510.53/131,275.49
  6. Step 6: Final answer
    x = 110,798.76

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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.