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Finding the Fourth Proportional to 123,222.74, 170,064.90 and 69,512.72

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Solution

The fourth proportional to 123,222.74, 170,064.90 and 69,512.72 is: 95,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,222.74 : 170,064.90 = 69,512.72 : x
  2. Step 2: Convert to fraction form
    123,222.74/170,064.90 = 69,512.72/x
  3. Step 3: Cross multiply
    123,222.74x = 170,064.90 × 69,512.72
  4. Step 4: Simplify right side
    123,222.74x = 11,821,672,925.20
  5. Step 5: Solve for x
    x = 11,821,672,925.20/123,222.74
  6. Step 6: Final answer
    x = 95,937.43

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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.