Home / 106,300.35-159,245.19-81,154.71

Finding the Fourth Proportional to 106,300.35, 159,245.19 and 81,154.71

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Solution

The fourth proportional to 106,300.35, 159,245.19 and 81,154.71 is: 121,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,300.35 : 159,245.19 = 81,154.71 : x
  2. Step 2: Convert to fraction form
    106,300.35/159,245.19 = 81,154.71/x
  3. Step 3: Cross multiply
    106,300.35x = 159,245.19 × 81,154.71
  4. Step 4: Simplify right side
    106,300.35x = 12,923,497,213.34
  5. Step 5: Solve for x
    x = 12,923,497,213.34/106,300.35
  6. Step 6: Final answer
    x = 121,575.30

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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.