Home / 103,418.66-154,984.47-47,121.19

Finding the Fourth Proportional to 103,418.66, 154,984.47 and 47,121.19

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Solution

The fourth proportional to 103,418.66, 154,984.47 and 47,121.19 is: 70,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,418.66 : 154,984.47 = 47,121.19 : x
  2. Step 2: Convert to fraction form
    103,418.66/154,984.47 = 47,121.19/x
  3. Step 3: Cross multiply
    103,418.66x = 154,984.47 × 47,121.19
  4. Step 4: Simplify right side
    103,418.66x = 7,303,052,270.46
  5. Step 5: Solve for x
    x = 7,303,052,270.46/103,418.66
  6. Step 6: Final answer
    x = 70,616.39

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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.