Home / 166,507.57-249,755.82-77,638.78

Finding the Fourth Proportional to 166,507.57, 249,755.82 and 77,638.78

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Solution

The fourth proportional to 166,507.57, 249,755.82 and 77,638.78 is: 116,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,507.57 : 249,755.82 = 77,638.78 : x
  2. Step 2: Convert to fraction form
    166,507.57/249,755.82 = 77,638.78/x
  3. Step 3: Cross multiply
    166,507.57x = 249,755.82 × 77,638.78
  4. Step 4: Simplify right side
    166,507.57x = 19,390,737,162.70
  5. Step 5: Solve for x
    x = 19,390,737,162.70/166,507.57
  6. Step 6: Final answer
    x = 116,455.59

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1.5x scale

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.