Home / 140,063.28-193,288.56-76,401.36

Finding the Fourth Proportional to 140,063.28, 193,288.56 and 76,401.36

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Solution

The fourth proportional to 140,063.28, 193,288.56 and 76,401.36 is: 105,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,063.28 : 193,288.56 = 76,401.36 : x
  2. Step 2: Convert to fraction form
    140,063.28/193,288.56 = 76,401.36/x
  3. Step 3: Cross multiply
    140,063.28x = 193,288.56 × 76,401.36
  4. Step 4: Simplify right side
    140,063.28x = 14,767,508,856.44
  5. Step 5: Solve for x
    x = 14,767,508,856.44/140,063.28
  6. Step 6: Final answer
    x = 105,434.55

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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.