Home / 131,238.28-181,084.98-77,532.04

Finding the Fourth Proportional to 131,238.28, 181,084.98 and 77,532.04

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Solution

The fourth proportional to 131,238.28, 181,084.98 and 77,532.04 is: 106,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,238.28 : 181,084.98 = 77,532.04 : x
  2. Step 2: Convert to fraction form
    131,238.28/181,084.98 = 77,532.04/x
  3. Step 3: Cross multiply
    131,238.28x = 181,084.98 × 77,532.04
  4. Step 4: Simplify right side
    131,238.28x = 14,039,887,912.76
  5. Step 5: Solve for x
    x = 14,039,887,912.76/131,238.28
  6. Step 6: Final answer
    x = 106,980.13

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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.