Home / 156,276.24-234,540.08-81,418.76

Finding the Fourth Proportional to 156,276.24, 234,540.08 and 81,418.76

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Solution

The fourth proportional to 156,276.24, 234,540.08 and 81,418.76 is: 122,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,276.24 : 234,540.08 = 81,418.76 : x
  2. Step 2: Convert to fraction form
    156,276.24/234,540.08 = 81,418.76/x
  3. Step 3: Cross multiply
    156,276.24x = 234,540.08 × 81,418.76
  4. Step 4: Simplify right side
    156,276.24x = 19,095,962,483.90
  5. Step 5: Solve for x
    x = 19,095,962,483.90/156,276.24
  6. Step 6: Final answer
    x = 122,193.64

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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.