Home / 103,689.08-154,463.49-100,552.86

Finding the Fourth Proportional to 103,689.08, 154,463.49 and 100,552.86

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Solution

The fourth proportional to 103,689.08, 154,463.49 and 100,552.86 is: 149,791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689.08 : 154,463.49 = 100,552.86 : x
  2. Step 2: Convert to fraction form
    103,689.08/154,463.49 = 100,552.86/x
  3. Step 3: Cross multiply
    103,689.08x = 154,463.49 × 100,552.86
  4. Step 4: Simplify right side
    103,689.08x = 15,531,745,685.08
  5. Step 5: Solve for x
    x = 15,531,745,685.08/103,689.08
  6. Step 6: Final answer
    x = 149,791.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.