Home / 115,171.84-158,782.38-103,362.04

Finding the Fourth Proportional to 115,171.84, 158,782.38 and 103,362.04

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Solution

The fourth proportional to 115,171.84, 158,782.38 and 103,362.04 is: 142,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,171.84 : 158,782.38 = 103,362.04 : x
  2. Step 2: Convert to fraction form
    115,171.84/158,782.38 = 103,362.04/x
  3. Step 3: Cross multiply
    115,171.84x = 158,782.38 × 103,362.04
  4. Step 4: Simplify right side
    115,171.84x = 16,412,070,712.86
  5. Step 5: Solve for x
    x = 16,412,070,712.86/115,171.84
  6. Step 6: Final answer
    x = 142,500.73

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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.