Home / 103,678.94-155,476.56-40,490.03

Finding the Fourth Proportional to 103,678.94, 155,476.56 and 40,490.03

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Solution

The fourth proportional to 103,678.94, 155,476.56 and 40,490.03 is: 60,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.94 : 155,476.56 = 40,490.03 : x
  2. Step 2: Convert to fraction form
    103,678.94/155,476.56 = 40,490.03/x
  3. Step 3: Cross multiply
    103,678.94x = 155,476.56 × 40,490.03
  4. Step 4: Simplify right side
    103,678.94x = 6,295,250,578.70
  5. Step 5: Solve for x
    x = 6,295,250,578.70/103,678.94
  6. Step 6: Final answer
    x = 60,718.70

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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.