Home / 105,722.20-158,610.30-74,618.20

Finding the Fourth Proportional to 105,722.20, 158,610.30 and 74,618.20

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Solution

The fourth proportional to 105,722.20, 158,610.30 and 74,618.20 is: 111,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,722.20 : 158,610.30 = 74,618.20 : x
  2. Step 2: Convert to fraction form
    105,722.20/158,610.30 = 74,618.20/x
  3. Step 3: Cross multiply
    105,722.20x = 158,610.30 × 74,618.20
  4. Step 4: Simplify right side
    105,722.20x = 11,835,215,087.46
  5. Step 5: Solve for x
    x = 11,835,215,087.46/105,722.20
  6. Step 6: Final answer
    x = 111,946.36

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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.