Home / 120,632.40-180,862.20-50,475.60

Finding the Fourth Proportional to 120,632.40, 180,862.20 and 50,475.60

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Solution

The fourth proportional to 120,632.40, 180,862.20 and 50,475.60 is: 75,677.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,632.40 : 180,862.20 = 50,475.60 : x
  2. Step 2: Convert to fraction form
    120,632.40/180,862.20 = 50,475.60/x
  3. Step 3: Cross multiply
    120,632.40x = 180,862.20 × 50,475.60
  4. Step 4: Simplify right side
    120,632.40x = 9,129,128,062.32
  5. Step 5: Solve for x
    x = 9,129,128,062.32/120,632.40
  6. Step 6: Final answer
    x = 75,677.25

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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.