Home / 120,562.16-180,851.92-31,814.64

Finding the Fourth Proportional to 120,562.16, 180,851.92 and 31,814.64

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Solution

The fourth proportional to 120,562.16, 180,851.92 and 31,814.64 is: 47,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,562.16 : 180,851.92 = 31,814.64 : x
  2. Step 2: Convert to fraction form
    120,562.16/180,851.92 = 31,814.64/x
  3. Step 3: Cross multiply
    120,562.16x = 180,851.92 × 31,814.64
  4. Step 4: Simplify right side
    120,562.16x = 5,753,738,728.11
  5. Step 5: Solve for x
    x = 5,753,738,728.11/120,562.16
  6. Step 6: Final answer
    x = 47,724.25

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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.