Home / 121,241.20-181,775.40-54,626.80

Finding the Fourth Proportional to 121,241.20, 181,775.40 and 54,626.80

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Solution

The fourth proportional to 121,241.20, 181,775.40 and 54,626.80 is: 81,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,241.20 : 181,775.40 = 54,626.80 : x
  2. Step 2: Convert to fraction form
    121,241.20/181,775.40 = 54,626.80/x
  3. Step 3: Cross multiply
    121,241.20x = 181,775.40 × 54,626.80
  4. Step 4: Simplify right side
    121,241.20x = 9,929,808,420.72
  5. Step 5: Solve for x
    x = 9,929,808,420.72/121,241.20
  6. Step 6: Final answer
    x = 81,901.27

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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.