Home / 156,905.10-235,357.65-96,981.30

Finding the Fourth Proportional to 156,905.10, 235,357.65 and 96,981.30

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Solution

The fourth proportional to 156,905.10, 235,357.65 and 96,981.30 is: 145,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,905.10 : 235,357.65 = 96,981.30 : x
  2. Step 2: Convert to fraction form
    156,905.10/235,357.65 = 96,981.30/x
  3. Step 3: Cross multiply
    156,905.10x = 235,357.65 × 96,981.30
  4. Step 4: Simplify right side
    156,905.10x = 22,825,290,861.95
  5. Step 5: Solve for x
    x = 22,825,290,861.95/156,905.10
  6. Step 6: Final answer
    x = 145,471.95

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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.