Home / 105,867.57-158,867.19-65,964.90

Finding the Fourth Proportional to 105,867.57, 158,867.19 and 65,964.90

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Solution

The fourth proportional to 105,867.57, 158,867.19 and 65,964.90 is: 98,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,867.57 : 158,867.19 = 65,964.90 : x
  2. Step 2: Convert to fraction form
    105,867.57/158,867.19 = 65,964.90/x
  3. Step 3: Cross multiply
    105,867.57x = 158,867.19 × 65,964.90
  4. Step 4: Simplify right side
    105,867.57x = 10,479,658,301.63
  5. Step 5: Solve for x
    x = 10,479,658,301.63/105,867.57
  6. Step 6: Final answer
    x = 98,988.37

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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.