Home / 156,307.46-234,086.58-80,205.74

Finding the Fourth Proportional to 156,307.46, 234,086.58 and 80,205.74

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Solution

The fourth proportional to 156,307.46, 234,086.58 and 80,205.74 is: 120,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,307.46 : 234,086.58 = 80,205.74 : x
  2. Step 2: Convert to fraction form
    156,307.46/234,086.58 = 80,205.74/x
  3. Step 3: Cross multiply
    156,307.46x = 234,086.58 × 80,205.74
  4. Step 4: Simplify right side
    156,307.46x = 18,775,087,372.97
  5. Step 5: Solve for x
    x = 18,775,087,372.97/156,307.46
  6. Step 6: Final answer
    x = 120,116.39

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1.5x scale

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.