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Finding the Fourth Proportional to 115,670.75, 159,599.76 and 67,256.72

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Solution

The fourth proportional to 115,670.75, 159,599.76 and 67,256.72 is: 92,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,670.75 : 159,599.76 = 67,256.72 : x
  2. Step 2: Convert to fraction form
    115,670.75/159,599.76 = 67,256.72/x
  3. Step 3: Cross multiply
    115,670.75x = 159,599.76 × 67,256.72
  4. Step 4: Simplify right side
    115,670.75x = 10,734,156,370.39
  5. Step 5: Solve for x
    x = 10,734,156,370.39/115,670.75
  6. Step 6: Final answer
    x = 92,799.23

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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.