Home / 156,104.40-234,310.20-77,307.60

Finding the Fourth Proportional to 156,104.40, 234,310.20 and 77,307.60

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Solution

The fourth proportional to 156,104.40, 234,310.20 and 77,307.60 is: 116,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,104.40 : 234,310.20 = 77,307.60 : x
  2. Step 2: Convert to fraction form
    156,104.40/234,310.20 = 77,307.60/x
  3. Step 3: Cross multiply
    156,104.40x = 234,310.20 × 77,307.60
  4. Step 4: Simplify right side
    156,104.40x = 18,113,959,217.52
  5. Step 5: Solve for x
    x = 18,113,959,217.52/156,104.40
  6. Step 6: Final answer
    x = 116,037.47

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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.