Home / 156,642.73-234,648.03-72,285.68

Finding the Fourth Proportional to 156,642.73, 234,648.03 and 72,285.68

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Solution

The fourth proportional to 156,642.73, 234,648.03 and 72,285.68 is: 108,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,642.73 : 234,648.03 = 72,285.68 : x
  2. Step 2: Convert to fraction form
    156,642.73/234,648.03 = 72,285.68/x
  3. Step 3: Cross multiply
    156,642.73x = 234,648.03 × 72,285.68
  4. Step 4: Simplify right side
    156,642.73x = 16,961,693,266.90
  5. Step 5: Solve for x
    x = 16,961,693,266.90/156,642.73
  6. Step 6: Final answer
    x = 108,282.67

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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.