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Finding the Fourth Proportional to 99,454.73, 137,152.12 and 66,822.94

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Solution

The fourth proportional to 99,454.73, 137,152.12 and 66,822.94 is: 92,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,454.73 : 137,152.12 = 66,822.94 : x
  2. Step 2: Convert to fraction form
    99,454.73/137,152.12 = 66,822.94/x
  3. Step 3: Cross multiply
    99,454.73x = 137,152.12 × 66,822.94
  4. Step 4: Simplify right side
    99,454.73x = 9,164,907,501.63
  5. Step 5: Solve for x
    x = 9,164,907,501.63/99,454.73
  6. Step 6: Final answer
    x = 92,151.55

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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.