Home / 108,131.50-162,278.43-40,730.04

Finding the Fourth Proportional to 108,131.50, 162,278.43 and 40,730.04

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Solution

The fourth proportional to 108,131.50, 162,278.43 and 40,730.04 is: 61,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,131.50 : 162,278.43 = 40,730.04 : x
  2. Step 2: Convert to fraction form
    108,131.50/162,278.43 = 40,730.04/x
  3. Step 3: Cross multiply
    108,131.50x = 162,278.43 × 40,730.04
  4. Step 4: Simplify right side
    108,131.50x = 6,609,606,133.65
  5. Step 5: Solve for x
    x = 6,609,606,133.65/108,131.50
  6. Step 6: Final answer
    x = 61,125.63

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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.