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Finding the Fourth Proportional to 166,447.68, 249,665.04 and 91,716

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Solution

The fourth proportional to 166,447.68, 249,665.04 and 91,716 is: 137,570.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,447.68 : 249,665.04 = 91,716 : x
  2. Step 2: Convert to fraction form
    166,447.68/249,665.04 = 91,716/x
  3. Step 3: Cross multiply
    166,447.68x = 249,665.04 × 91,716
  4. Step 4: Simplify right side
    166,447.68x = 22,898,278,808.64
  5. Step 5: Solve for x
    x = 22,898,278,808.64/166,447.68
  6. Step 6: Final answer
    x = 137,570.43

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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.