Home / 123,972.14-171,086.65-70,256.58

Finding the Fourth Proportional to 123,972.14, 171,086.65 and 70,256.58

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Solution

The fourth proportional to 123,972.14, 171,086.65 and 70,256.58 is: 96,956.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,972.14 : 171,086.65 = 70,256.58 : x
  2. Step 2: Convert to fraction form
    123,972.14/171,086.65 = 70,256.58/x
  3. Step 3: Cross multiply
    123,972.14x = 171,086.65 × 70,256.58
  4. Step 4: Simplify right side
    123,972.14x = 12,019,962,912.66
  5. Step 5: Solve for x
    x = 12,019,962,912.66/123,972.14
  6. Step 6: Final answer
    x = 96,956.97

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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.