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Finding the Fourth Proportional to 180,613.79, 249,251.07 and 103,087.89

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Solution

The fourth proportional to 180,613.79, 249,251.07 and 103,087.89 is: 142,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,613.79 : 249,251.07 = 103,087.89 : x
  2. Step 2: Convert to fraction form
    180,613.79/249,251.07 = 103,087.89/x
  3. Step 3: Cross multiply
    180,613.79x = 249,251.07 × 103,087.89
  4. Step 4: Simplify right side
    180,613.79x = 25,694,766,886.54
  5. Step 5: Solve for x
    x = 25,694,766,886.54/180,613.79
  6. Step 6: Final answer
    x = 142,263.59

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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.