Home / 109,044.46-150,323.62-72,188.90

Finding the Fourth Proportional to 109,044.46, 150,323.62 and 72,188.90

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Solution

The fourth proportional to 109,044.46, 150,323.62 and 72,188.90 is: 99,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,044.46 : 150,323.62 = 72,188.90 : x
  2. Step 2: Convert to fraction form
    109,044.46/150,323.62 = 72,188.90/x
  3. Step 3: Cross multiply
    109,044.46x = 150,323.62 × 72,188.90
  4. Step 4: Simplify right side
    109,044.46x = 10,851,696,100.04
  5. Step 5: Solve for x
    x = 10,851,696,100.04/109,044.46
  6. Step 6: Final answer
    x = 99,516.25

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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.