Home / 136,624.28-188,532.60-75,366.78

Finding the Fourth Proportional to 136,624.28, 188,532.60 and 75,366.78

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Solution

The fourth proportional to 136,624.28, 188,532.60 and 75,366.78 is: 104,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,624.28 : 188,532.60 = 75,366.78 : x
  2. Step 2: Convert to fraction form
    136,624.28/188,532.60 = 75,366.78/x
  3. Step 3: Cross multiply
    136,624.28x = 188,532.60 × 75,366.78
  4. Step 4: Simplify right side
    136,624.28x = 14,209,094,987.03
  5. Step 5: Solve for x
    x = 14,209,094,987.03/136,624.28
  6. Step 6: Final answer
    x = 104,001.24

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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.