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Finding the Fourth Proportional to 180,487.80, 249,076.10 and 98,814.68

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Solution

The fourth proportional to 180,487.80, 249,076.10 and 98,814.68 is: 136,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,487.80 : 249,076.10 = 98,814.68 : x
  2. Step 2: Convert to fraction form
    180,487.80/249,076.10 = 98,814.68/x
  3. Step 3: Cross multiply
    180,487.80x = 249,076.10 × 98,814.68
  4. Step 4: Simplify right side
    180,487.80x = 24,612,375,117.15
  5. Step 5: Solve for x
    x = 24,612,375,117.15/180,487.80
  6. Step 6: Final answer
    x = 136,365.87

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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.