Home / 131,681.44-181,719.88-71,252.20

Finding the Fourth Proportional to 131,681.44, 181,719.88 and 71,252.20

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Solution

The fourth proportional to 131,681.44, 181,719.88 and 71,252.20 is: 98,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,681.44 : 181,719.88 = 71,252.20 : x
  2. Step 2: Convert to fraction form
    131,681.44/181,719.88 = 71,252.20/x
  3. Step 3: Cross multiply
    131,681.44x = 181,719.88 × 71,252.20
  4. Step 4: Simplify right side
    131,681.44x = 12,947,941,233.74
  5. Step 5: Solve for x
    x = 12,947,941,233.74/131,681.44
  6. Step 6: Final answer
    x = 98,327.76

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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.