Home / 106,222.20-158,987.70-82,721.40

Finding the Fourth Proportional to 106,222.20, 158,987.70 and 82,721.40

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Solution

The fourth proportional to 106,222.20, 158,987.70 and 82,721.40 is: 123,812.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,222.20 : 158,987.70 = 82,721.40 : x
  2. Step 2: Convert to fraction form
    106,222.20/158,987.70 = 82,721.40/x
  3. Step 3: Cross multiply
    106,222.20x = 158,987.70 × 82,721.40
  4. Step 4: Simplify right side
    106,222.20x = 13,151,685,126.78
  5. Step 5: Solve for x
    x = 13,151,685,126.78/106,222.20
  6. Step 6: Final answer
    x = 123,812.96

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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.