Home / 131,533.27-181,515.68-71,103.95

Finding the Fourth Proportional to 131,533.27, 181,515.68 and 71,103.95

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Solution

The fourth proportional to 131,533.27, 181,515.68 and 71,103.95 is: 98,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,533.27 : 181,515.68 = 71,103.95 : x
  2. Step 2: Convert to fraction form
    131,533.27/181,515.68 = 71,103.95/x
  3. Step 3: Cross multiply
    131,533.27x = 181,515.68 × 71,103.95
  4. Step 4: Simplify right side
    131,533.27x = 12,906,481,479.42
  5. Step 5: Solve for x
    x = 12,906,481,479.42/131,533.27
  6. Step 6: Final answer
    x = 98,123.32

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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.