Home / 103,153.06-154,737.78-43,989.23

Finding the Fourth Proportional to 103,153.06, 154,737.78 and 43,989.23

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Solution

The fourth proportional to 103,153.06, 154,737.78 and 43,989.23 is: 65,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,153.06 : 154,737.78 = 43,989.23 : x
  2. Step 2: Convert to fraction form
    103,153.06/154,737.78 = 43,989.23/x
  3. Step 3: Cross multiply
    103,153.06x = 154,737.78 × 43,989.23
  4. Step 4: Simplify right side
    103,153.06x = 6,806,795,794.11
  5. Step 5: Solve for x
    x = 6,806,795,794.11/103,153.06
  6. Step 6: Final answer
    x = 65,987.34

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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.