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Finding the Fourth Proportional to 112,791.66, 155,652.49 and 67,471.55

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Solution

The fourth proportional to 112,791.66, 155,652.49 and 67,471.55 is: 93,110.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,791.66 : 155,652.49 = 67,471.55 : x
  2. Step 2: Convert to fraction form
    112,791.66/155,652.49 = 67,471.55/x
  3. Step 3: Cross multiply
    112,791.66x = 155,652.49 × 67,471.55
  4. Step 4: Simplify right side
    112,791.66x = 10,502,114,271.91
  5. Step 5: Solve for x
    x = 10,502,114,271.91/112,791.66
  6. Step 6: Final answer
    x = 93,110.74

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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.