Home / 107,874.47-161,811.56-28,988.70

Finding the Fourth Proportional to 107,874.47, 161,811.56 and 28,988.70

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Solution

The fourth proportional to 107,874.47, 161,811.56 and 28,988.70 is: 43,483.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,874.47 : 161,811.56 = 28,988.70 : x
  2. Step 2: Convert to fraction form
    107,874.47/161,811.56 = 28,988.70/x
  3. Step 3: Cross multiply
    107,874.47x = 161,811.56 × 28,988.70
  4. Step 4: Simplify right side
    107,874.47x = 4,690,706,769.37
  5. Step 5: Solve for x
    x = 4,690,706,769.37/107,874.47
  6. Step 6: Final answer
    x = 43,483.01

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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.