Home / 120,972.72-166,934.70-67,256.76

Finding the Fourth Proportional to 120,972.72, 166,934.70 and 67,256.76

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Solution

The fourth proportional to 120,972.72, 166,934.70 and 67,256.76 is: 92,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,972.72 : 166,934.70 = 67,256.76 : x
  2. Step 2: Convert to fraction form
    120,972.72/166,934.70 = 67,256.76/x
  3. Step 3: Cross multiply
    120,972.72x = 166,934.70 × 67,256.76
  4. Step 4: Simplify right side
    120,972.72x = 11,227,487,053.57
  5. Step 5: Solve for x
    x = 11,227,487,053.57/120,972.72
  6. Step 6: Final answer
    x = 92,810.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.