Home / 156,636.30-234,436.05-121,385.10

Finding the Fourth Proportional to 156,636.30, 234,436.05 and 121,385.10

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Solution

The fourth proportional to 156,636.30, 234,436.05 and 121,385.10 is: 181,675.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.30 : 234,436.05 = 121,385.10 : x
  2. Step 2: Convert to fraction form
    156,636.30/234,436.05 = 121,385.10/x
  3. Step 3: Cross multiply
    156,636.30x = 234,436.05 × 121,385.10
  4. Step 4: Simplify right side
    156,636.30x = 28,457,043,372.86
  5. Step 5: Solve for x
    x = 28,457,043,372.86/156,636.30
  6. Step 6: Final answer
    x = 181,675.92

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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.