Home / 156,633.30-234,431.55-121,382.10

Finding the Fourth Proportional to 156,633.30, 234,431.55 and 121,382.10

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Solution

The fourth proportional to 156,633.30, 234,431.55 and 121,382.10 is: 181,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.30 : 234,431.55 = 121,382.10 : x
  2. Step 2: Convert to fraction form
    156,633.30/234,431.55 = 121,382.10/x
  3. Step 3: Cross multiply
    156,633.30x = 234,431.55 × 121,382.10
  4. Step 4: Simplify right side
    156,633.30x = 28,455,793,845.26
  5. Step 5: Solve for x
    x = 28,455,793,845.26/156,633.30
  6. Step 6: Final answer
    x = 181,671.42

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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.