Home / 119,728.85-165,225.67-66,014.71

Finding the Fourth Proportional to 119,728.85, 165,225.67 and 66,014.71

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Solution

The fourth proportional to 119,728.85, 165,225.67 and 66,014.71 is: 91,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,728.85 : 165,225.67 = 66,014.71 : x
  2. Step 2: Convert to fraction form
    119,728.85/165,225.67 = 66,014.71/x
  3. Step 3: Cross multiply
    119,728.85x = 165,225.67 × 66,014.71
  4. Step 4: Simplify right side
    119,728.85x = 10,907,324,689.61
  5. Step 5: Solve for x
    x = 10,907,324,689.61/119,728.85
  6. Step 6: Final answer
    x = 91,100.22

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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.