Home / 151,523.90-209,084.73-86,989.58

Finding the Fourth Proportional to 151,523.90, 209,084.73 and 86,989.58

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Solution

The fourth proportional to 151,523.90, 209,084.73 and 86,989.58 is: 120,035.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,523.90 : 209,084.73 = 86,989.58 : x
  2. Step 2: Convert to fraction form
    151,523.90/209,084.73 = 86,989.58/x
  3. Step 3: Cross multiply
    151,523.90x = 209,084.73 × 86,989.58
  4. Step 4: Simplify right side
    151,523.90x = 18,188,192,847.11
  5. Step 5: Solve for x
    x = 18,188,192,847.11/151,523.90
  6. Step 6: Final answer
    x = 120,035.14

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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.