Home / 141,552.20-212,328.30-79,214.60

Finding the Fourth Proportional to 141,552.20, 212,328.30 and 79,214.60

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Solution

The fourth proportional to 141,552.20, 212,328.30 and 79,214.60 is: 118,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,552.20 : 212,328.30 = 79,214.60 : x
  2. Step 2: Convert to fraction form
    141,552.20/212,328.30 = 79,214.60/x
  3. Step 3: Cross multiply
    141,552.20x = 212,328.30 × 79,214.60
  4. Step 4: Simplify right side
    141,552.20x = 16,819,501,353.18
  5. Step 5: Solve for x
    x = 16,819,501,353.18/141,552.20
  6. Step 6: Final answer
    x = 118,821.90

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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.