Home / 119,891.76-165,450.28-66,176.40

Finding the Fourth Proportional to 119,891.76, 165,450.28 and 66,176.40

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Solution

The fourth proportional to 119,891.76, 165,450.28 and 66,176.40 is: 91,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,891.76 : 165,450.28 = 66,176.40 : x
  2. Step 2: Convert to fraction form
    119,891.76/165,450.28 = 66,176.40/x
  3. Step 3: Cross multiply
    119,891.76x = 165,450.28 × 66,176.40
  4. Step 4: Simplify right side
    119,891.76x = 10,948,903,909.39
  5. Step 5: Solve for x
    x = 10,948,903,909.39/119,891.76
  6. Step 6: Final answer
    x = 91,323.24

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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.