Home / 129,116.32-193,679.96-40,371.48

Finding the Fourth Proportional to 129,116.32, 193,679.96 and 40,371.48

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Solution

The fourth proportional to 129,116.32, 193,679.96 and 40,371.48 is: 60,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,116.32 : 193,679.96 = 40,371.48 : x
  2. Step 2: Convert to fraction form
    129,116.32/193,679.96 = 40,371.48/x
  3. Step 3: Cross multiply
    129,116.32x = 193,679.96 × 40,371.48
  4. Step 4: Simplify right side
    129,116.32x = 7,819,146,631.54
  5. Step 5: Solve for x
    x = 7,819,146,631.54/129,116.32
  6. Step 6: Final answer
    x = 60,558.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.