Home / 156,530.06-234,767.78-72,283.04

Finding the Fourth Proportional to 156,530.06, 234,767.78 and 72,283.04

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Solution

The fourth proportional to 156,530.06, 234,767.78 and 72,283.04 is: 108,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,530.06 : 234,767.78 = 72,283.04 : x
  2. Step 2: Convert to fraction form
    156,530.06/234,767.78 = 72,283.04/x
  3. Step 3: Cross multiply
    156,530.06x = 234,767.78 × 72,283.04
  4. Step 4: Simplify right side
    156,530.06x = 16,969,728,832.45
  5. Step 5: Solve for x
    x = 16,969,728,832.45/156,530.06
  6. Step 6: Final answer
    x = 108,411.95

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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.