Home / 121,420.80-182,131.20-96,324.98

Finding the Fourth Proportional to 121,420.80, 182,131.20 and 96,324.98

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Solution

The fourth proportional to 121,420.80, 182,131.20 and 96,324.98 is: 144,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,420.80 : 182,131.20 = 96,324.98 : x
  2. Step 2: Convert to fraction form
    121,420.80/182,131.20 = 96,324.98/x
  3. Step 3: Cross multiply
    121,420.80x = 182,131.20 × 96,324.98
  4. Step 4: Simplify right side
    121,420.80x = 17,543,783,286.72
  5. Step 5: Solve for x
    x = 17,543,783,286.72/121,420.80
  6. Step 6: Final answer
    x = 144,487.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.