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Finding the Fourth Proportional to 166,445.20, 249,700.20 and 71,675.20

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Solution

The fourth proportional to 166,445.20, 249,700.20 and 71,675.20 is: 107,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,445.20 : 249,700.20 = 71,675.20 : x
  2. Step 2: Convert to fraction form
    166,445.20/249,700.20 = 71,675.20/x
  3. Step 3: Cross multiply
    166,445.20x = 249,700.20 × 71,675.20
  4. Step 4: Simplify right side
    166,445.20x = 17,897,311,775.04
  5. Step 5: Solve for x
    x = 17,897,311,775.04/166,445.20
  6. Step 6: Final answer
    x = 107,526.75

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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.