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Finding the Fourth Proportional to 166,343.80, 249,672.30 and 87,514.60

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Solution

The fourth proportional to 166,343.80, 249,672.30 and 87,514.60 is: 131,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,343.80 : 249,672.30 = 87,514.60 : x
  2. Step 2: Convert to fraction form
    166,343.80/249,672.30 = 87,514.60/x
  3. Step 3: Cross multiply
    166,343.80x = 249,672.30 × 87,514.60
  4. Step 4: Simplify right side
    166,343.80x = 21,849,971,465.58
  5. Step 5: Solve for x
    x = 21,849,971,465.58/166,343.80
  6. Step 6: Final answer
    x = 131,354.29

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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.