Home / 103,963.13-155,961.51-40,748.97

Finding the Fourth Proportional to 103,963.13, 155,961.51 and 40,748.97

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Solution

The fourth proportional to 103,963.13, 155,961.51 and 40,748.97 is: 61,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,963.13 : 155,961.51 = 40,748.97 : x
  2. Step 2: Convert to fraction form
    103,963.13/155,961.51 = 40,748.97/x
  3. Step 3: Cross multiply
    103,963.13x = 155,961.51 × 40,748.97
  4. Step 4: Simplify right side
    103,963.13x = 6,355,270,892.14
  5. Step 5: Solve for x
    x = 6,355,270,892.14/103,963.13
  6. Step 6: Final answer
    x = 61,130.05

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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.