Home / 131,803.41-181,889.56-71,374.05

Finding the Fourth Proportional to 131,803.41, 181,889.56 and 71,374.05

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Solution

The fourth proportional to 131,803.41, 181,889.56 and 71,374.05 is: 98,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,803.41 : 181,889.56 = 71,374.05 : x
  2. Step 2: Convert to fraction form
    131,803.41/181,889.56 = 71,374.05/x
  3. Step 3: Cross multiply
    131,803.41x = 181,889.56 × 71,374.05
  4. Step 4: Simplify right side
    131,803.41x = 12,982,194,549.92
  5. Step 5: Solve for x
    x = 12,982,194,549.92/131,803.41
  6. Step 6: Final answer
    x = 98,496.65

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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.