Home / 131,363.61-181,283.22-74,775.39

Finding the Fourth Proportional to 131,363.61, 181,283.22 and 74,775.39

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Solution

The fourth proportional to 131,363.61, 181,283.22 and 74,775.39 is: 103,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,363.61 : 181,283.22 = 74,775.39 : x
  2. Step 2: Convert to fraction form
    131,363.61/181,283.22 = 74,775.39/x
  3. Step 3: Cross multiply
    131,363.61x = 181,283.22 × 74,775.39
  4. Step 4: Simplify right side
    131,363.61x = 13,555,523,475.96
  5. Step 5: Solve for x
    x = 13,555,523,475.96/131,363.61
  6. Step 6: Final answer
    x = 103,190.86

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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.