Home / 117,680.60-162,436.38-75,239.30

Finding the Fourth Proportional to 117,680.60, 162,436.38 and 75,239.30

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Solution

The fourth proportional to 117,680.60, 162,436.38 and 75,239.30 is: 103,853.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,680.60 : 162,436.38 = 75,239.30 : x
  2. Step 2: Convert to fraction form
    117,680.60/162,436.38 = 75,239.30/x
  3. Step 3: Cross multiply
    117,680.60x = 162,436.38 × 75,239.30
  4. Step 4: Simplify right side
    117,680.60x = 12,221,599,525.73
  5. Step 5: Solve for x
    x = 12,221,599,525.73/117,680.60
  6. Step 6: Final answer
    x = 103,853.99

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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.