Home / 156,250.32-234,381.20-80,328.48

Finding the Fourth Proportional to 156,250.32, 234,381.20 and 80,328.48

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Solution

The fourth proportional to 156,250.32, 234,381.20 and 80,328.48 is: 120,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,250.32 : 234,381.20 = 80,328.48 : x
  2. Step 2: Convert to fraction form
    156,250.32/234,381.20 = 80,328.48/x
  3. Step 3: Cross multiply
    156,250.32x = 234,381.20 × 80,328.48
  4. Step 4: Simplify right side
    156,250.32x = 18,827,485,536.58
  5. Step 5: Solve for x
    x = 18,827,485,536.58/156,250.32
  6. Step 6: Final answer
    x = 120,495.66

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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.