Home / 120,095.42-180,143.14-31,348.16

Finding the Fourth Proportional to 120,095.42, 180,143.14 and 31,348.16

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Solution

The fourth proportional to 120,095.42, 180,143.14 and 31,348.16 is: 47,022.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,095.42 : 180,143.14 = 31,348.16 : x
  2. Step 2: Convert to fraction form
    120,095.42/180,143.14 = 31,348.16/x
  3. Step 3: Cross multiply
    120,095.42x = 180,143.14 × 31,348.16
  4. Step 4: Simplify right side
    120,095.42x = 5,647,155,975.62
  5. Step 5: Solve for x
    x = 5,647,155,975.62/120,095.42
  6. Step 6: Final answer
    x = 47,022.24

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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.