Home / 131,366.50-181,285.98-74,777.88

Finding the Fourth Proportional to 131,366.50, 181,285.98 and 74,777.88

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Solution

The fourth proportional to 131,366.50, 181,285.98 and 74,777.88 is: 103,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,366.50 : 181,285.98 = 74,777.88 : x
  2. Step 2: Convert to fraction form
    131,366.50/181,285.98 = 74,777.88/x
  3. Step 3: Cross multiply
    131,366.50x = 181,285.98 × 74,777.88
  4. Step 4: Simplify right side
    131,366.50x = 13,556,181,258.12
  5. Step 5: Solve for x
    x = 13,556,181,258.12/131,366.50
  6. Step 6: Final answer
    x = 103,193.59

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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.