Home / 120,599.12-180,894.90-31,853.10

Finding the Fourth Proportional to 120,599.12, 180,894.90 and 31,853.10

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Solution

The fourth proportional to 120,599.12, 180,894.90 and 31,853.10 is: 47,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,599.12 : 180,894.90 = 31,853.10 : x
  2. Step 2: Convert to fraction form
    120,599.12/180,894.90 = 31,853.10/x
  3. Step 3: Cross multiply
    120,599.12x = 180,894.90 × 31,853.10
  4. Step 4: Simplify right side
    120,599.12x = 5,762,063,339.19
  5. Step 5: Solve for x
    x = 5,762,063,339.19/120,599.12
  6. Step 6: Final answer
    x = 47,778.65

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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.