Home / 111,947.10-167,920.65-110,780.70

Finding the Fourth Proportional to 111,947.10, 167,920.65 and 110,780.70

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Solution

The fourth proportional to 111,947.10, 167,920.65 and 110,780.70 is: 166,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,947.10 : 167,920.65 = 110,780.70 : x
  2. Step 2: Convert to fraction form
    111,947.10/167,920.65 = 110,780.70/x
  3. Step 3: Cross multiply
    111,947.10x = 167,920.65 × 110,780.70
  4. Step 4: Simplify right side
    111,947.10x = 18,602,367,151.46
  5. Step 5: Solve for x
    x = 18,602,367,151.46/111,947.10
  6. Step 6: Final answer
    x = 166,171.05

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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.