Home / 120,020.11-180,143.15-60,898.21

Finding the Fourth Proportional to 120,020.11, 180,143.15 and 60,898.21

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Solution

The fourth proportional to 120,020.11, 180,143.15 and 60,898.21 is: 91,404.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,020.11 : 180,143.15 = 60,898.21 : x
  2. Step 2: Convert to fraction form
    120,020.11/180,143.15 = 60,898.21/x
  3. Step 3: Cross multiply
    120,020.11x = 180,143.15 × 60,898.21
  4. Step 4: Simplify right side
    120,020.11x = 10,970,395,080.65
  5. Step 5: Solve for x
    x = 10,970,395,080.65/120,020.11
  6. Step 6: Final answer
    x = 91,404.64

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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.