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Finding the Fourth Proportional to 166,474.52, 249,748.78 and 77,679.59

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Solution

The fourth proportional to 166,474.52, 249,748.78 and 77,679.59 is: 116,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,474.52 : 249,748.78 = 77,679.59 : x
  2. Step 2: Convert to fraction form
    166,474.52/249,748.78 = 77,679.59/x
  3. Step 3: Cross multiply
    166,474.52x = 249,748.78 × 77,679.59
  4. Step 4: Simplify right side
    166,474.52x = 19,400,382,833.40
  5. Step 5: Solve for x
    x = 19,400,382,833.40/166,474.52
  6. Step 6: Final answer
    x = 116,536.65

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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.