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Finding the Fourth Proportional to 166,443.68, 249,659.04 and 91,712

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Solution

The fourth proportional to 166,443.68, 249,659.04 and 91,712 is: 137,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,443.68 : 249,659.04 = 91,712 : x
  2. Step 2: Convert to fraction form
    166,443.68/249,659.04 = 91,712/x
  3. Step 3: Cross multiply
    166,443.68x = 249,659.04 × 91,712
  4. Step 4: Simplify right side
    166,443.68x = 22,896,729,876.48
  5. Step 5: Solve for x
    x = 22,896,729,876.48/166,443.68
  6. Step 6: Final answer
    x = 137,564.43

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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.