Home / 131,717.52-181,758.63-77,993.46

Finding the Fourth Proportional to 131,717.52, 181,758.63 and 77,993.46

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Solution

The fourth proportional to 131,717.52, 181,758.63 and 77,993.46 is: 107,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,717.52 : 181,758.63 = 77,993.46 : x
  2. Step 2: Convert to fraction form
    131,717.52/181,758.63 = 77,993.46/x
  3. Step 3: Cross multiply
    131,717.52x = 181,758.63 × 77,993.46
  4. Step 4: Simplify right side
    131,717.52x = 14,175,984,438.56
  5. Step 5: Solve for x
    x = 14,175,984,438.56/131,717.52
  6. Step 6: Final answer
    x = 107,624.14

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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.