Home / 180,939.96-249,696.23-100,366.65

Finding the Fourth Proportional to 180,939.96, 249,696.23 and 100,366.65

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Solution

The fourth proportional to 180,939.96, 249,696.23 and 100,366.65 is: 138,505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,939.96 : 249,696.23 = 100,366.65 : x
  2. Step 2: Convert to fraction form
    180,939.96/249,696.23 = 100,366.65/x
  3. Step 3: Cross multiply
    180,939.96x = 249,696.23 × 100,366.65
  4. Step 4: Simplify right side
    180,939.96x = 25,061,173,620.90
  5. Step 5: Solve for x
    x = 25,061,173,620.90/180,939.96
  6. Step 6: Final answer
    x = 138,505.47

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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.