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Finding the Fourth Proportional to 117,443.97, 162,073.85 and 63,729.45

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Solution

The fourth proportional to 117,443.97, 162,073.85 and 63,729.45 is: 87,947.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,443.97 : 162,073.85 = 63,729.45 : x
  2. Step 2: Convert to fraction form
    117,443.97/162,073.85 = 63,729.45/x
  3. Step 3: Cross multiply
    117,443.97x = 162,073.85 × 63,729.45
  4. Step 4: Simplify right side
    117,443.97x = 10,328,877,001.24
  5. Step 5: Solve for x
    x = 10,328,877,001.24/117,443.97
  6. Step 6: Final answer
    x = 87,947.27

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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.