Home / 196,382.13-271,038.12-115,818.51

Finding the Fourth Proportional to 196,382.13, 271,038.12 and 115,818.51

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Solution

The fourth proportional to 196,382.13, 271,038.12 and 115,818.51 is: 159,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,382.13 : 271,038.12 = 115,818.51 : x
  2. Step 2: Convert to fraction form
    196,382.13/271,038.12 = 115,818.51/x
  3. Step 3: Cross multiply
    196,382.13x = 271,038.12 × 115,818.51
  4. Step 4: Simplify right side
    196,382.13x = 31,391,231,793.67
  5. Step 5: Solve for x
    x = 31,391,231,793.67/196,382.13
  6. Step 6: Final answer
    x = 159,847.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.