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Finding the Fourth Proportional to 180,751.88, 249,437.40 and 100,179.56

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Solution

The fourth proportional to 180,751.88, 249,437.40 and 100,179.56 is: 138,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,751.88 : 249,437.40 = 100,179.56 : x
  2. Step 2: Convert to fraction form
    180,751.88/249,437.40 = 100,179.56/x
  3. Step 3: Cross multiply
    180,751.88x = 249,437.40 × 100,179.56
  4. Step 4: Simplify right side
    180,751.88x = 24,988,528,979.54
  5. Step 5: Solve for x
    x = 24,988,528,979.54/180,751.88
  6. Step 6: Final answer
    x = 138,247.69

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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.