Home / 103,989.12-156,000-44,841.60

Finding the Fourth Proportional to 103,989.12, 156,000 and 44,841.60

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Solution

The fourth proportional to 103,989.12, 156,000 and 44,841.60 is: 67,269.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,989.12 : 156,000 = 44,841.60 : x
  2. Step 2: Convert to fraction form
    103,989.12/156,000 = 44,841.60/x
  3. Step 3: Cross multiply
    103,989.12x = 156,000 × 44,841.60
  4. Step 4: Simplify right side
    103,989.12x = 6,995,289,600
  5. Step 5: Solve for x
    x = 6,995,289,600/103,989.12
  6. Step 6: Final answer
    x = 67,269.44

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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.