Home / 131,772.30-181,843.57-71,342.46

Finding the Fourth Proportional to 131,772.30, 181,843.57 and 71,342.46

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Solution

The fourth proportional to 131,772.30, 181,843.57 and 71,342.46 is: 98,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,772.30 : 181,843.57 = 71,342.46 : x
  2. Step 2: Convert to fraction form
    131,772.30/181,843.57 = 71,342.46/x
  3. Step 3: Cross multiply
    131,772.30x = 181,843.57 × 71,342.46
  4. Step 4: Simplify right side
    131,772.30x = 12,973,167,618.98
  5. Step 5: Solve for x
    x = 12,973,167,618.98/131,772.30
  6. Step 6: Final answer
    x = 98,451.40

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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.