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Finding the Fourth Proportional to 117,853.84, 162,641.96 and 66,868.73

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Solution

The fourth proportional to 117,853.84, 162,641.96 and 66,868.73 is: 92,280.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,853.84 : 162,641.96 = 66,868.73 : x
  2. Step 2: Convert to fraction form
    117,853.84/162,641.96 = 66,868.73/x
  3. Step 3: Cross multiply
    117,853.84x = 162,641.96 × 66,868.73
  4. Step 4: Simplify right side
    117,853.84x = 10,875,661,309.91
  5. Step 5: Solve for x
    x = 10,875,661,309.91/117,853.84
  6. Step 6: Final answer
    x = 92,280.92

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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.