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Finding the Fourth Proportional to 88,144.74, 121,702.84 and 54,198.72

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Solution

The fourth proportional to 88,144.74, 121,702.84 and 54,198.72 is: 74,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,144.74 : 121,702.84 = 54,198.72 : x
  2. Step 2: Convert to fraction form
    88,144.74/121,702.84 = 54,198.72/x
  3. Step 3: Cross multiply
    88,144.74x = 121,702.84 × 54,198.72
  4. Step 4: Simplify right side
    88,144.74x = 6,596,138,012.87
  5. Step 5: Solve for x
    x = 6,596,138,012.87/88,144.74
  6. Step 6: Final answer
    x = 74,833.03

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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.