Home / 143,780.44-215,342.61-126,962.50

Finding the Fourth Proportional to 143,780.44, 215,342.61 and 126,962.50

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Solution

The fourth proportional to 143,780.44, 215,342.61 and 126,962.50 is: 190,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,780.44 : 215,342.61 = 126,962.50 : x
  2. Step 2: Convert to fraction form
    143,780.44/215,342.61 = 126,962.50/x
  3. Step 3: Cross multiply
    143,780.44x = 215,342.61 × 126,962.50
  4. Step 4: Simplify right side
    143,780.44x = 27,340,436,122.13
  5. Step 5: Solve for x
    x = 27,340,436,122.13/143,780.44
  6. Step 6: Final answer
    x = 190,154.07

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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.