Home / 103,419.27-155,042.78-40,224.53

Finding the Fourth Proportional to 103,419.27, 155,042.78 and 40,224.53

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Solution

The fourth proportional to 103,419.27, 155,042.78 and 40,224.53 is: 60,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,419.27 : 155,042.78 = 40,224.53 : x
  2. Step 2: Convert to fraction form
    103,419.27/155,042.78 = 40,224.53/x
  3. Step 3: Cross multiply
    103,419.27x = 155,042.78 × 40,224.53
  4. Step 4: Simplify right side
    103,419.27x = 6,236,522,955.39
  5. Step 5: Solve for x
    x = 6,236,522,955.39/103,419.27
  6. Step 6: Final answer
    x = 60,303.30

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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.