Home / 107,868.40-161,802.45-28,982.61

Finding the Fourth Proportional to 107,868.40, 161,802.45 and 28,982.61

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Solution

The fourth proportional to 107,868.40, 161,802.45 and 28,982.61 is: 43,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,868.40 : 161,802.45 = 28,982.61 : x
  2. Step 2: Convert to fraction form
    107,868.40/161,802.45 = 28,982.61/x
  3. Step 3: Cross multiply
    107,868.40x = 161,802.45 × 28,982.61
  4. Step 4: Simplify right side
    107,868.40x = 4,689,457,305.39
  5. Step 5: Solve for x
    x = 4,689,457,305.39/107,868.40
  6. Step 6: Final answer
    x = 43,473.88

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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.