Home / 155,984.24-215,257.62-88,001.20

Finding the Fourth Proportional to 155,984.24, 215,257.62 and 88,001.20

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Solution

The fourth proportional to 155,984.24, 215,257.62 and 88,001.20 is: 121,441.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,984.24 : 215,257.62 = 88,001.20 : x
  2. Step 2: Convert to fraction form
    155,984.24/215,257.62 = 88,001.20/x
  3. Step 3: Cross multiply
    155,984.24x = 215,257.62 × 88,001.20
  4. Step 4: Simplify right side
    155,984.24x = 18,942,928,869.14
  5. Step 5: Solve for x
    x = 18,942,928,869.14/155,984.24
  6. Step 6: Final answer
    x = 121,441.30

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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.