Home / 120,452.40-180,720.52-53,899.56

Finding the Fourth Proportional to 120,452.40, 180,720.52 and 53,899.56

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Solution

The fourth proportional to 120,452.40, 180,720.52 and 53,899.56 is: 80,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,452.40 : 180,720.52 = 53,899.56 : x
  2. Step 2: Convert to fraction form
    120,452.40/180,720.52 = 53,899.56/x
  3. Step 3: Cross multiply
    120,452.40x = 180,720.52 × 53,899.56
  4. Step 4: Simplify right side
    120,452.40x = 9,740,756,510.97
  5. Step 5: Solve for x
    x = 9,740,756,510.97/120,452.40
  6. Step 6: Final answer
    x = 80,868.10

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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.