Home / 187,839.90-282,051.45-109,107.90

Finding the Fourth Proportional to 187,839.90, 282,051.45 and 109,107.90

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Solution

The fourth proportional to 187,839.90, 282,051.45 and 109,107.90 is: 163,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,839.90 : 282,051.45 = 109,107.90 : x
  2. Step 2: Convert to fraction form
    187,839.90/282,051.45 = 109,107.90/x
  3. Step 3: Cross multiply
    187,839.90x = 282,051.45 × 109,107.90
  4. Step 4: Simplify right side
    187,839.90x = 30,774,041,401.46
  5. Step 5: Solve for x
    x = 30,774,041,401.46/187,839.90
  6. Step 6: Final answer
    x = 163,831.23

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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.