Home / 138,911.04-191,696.85-75,249.90

Finding the Fourth Proportional to 138,911.04, 191,696.85 and 75,249.90

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Solution

The fourth proportional to 138,911.04, 191,696.85 and 75,249.90 is: 103,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,911.04 : 191,696.85 = 75,249.90 : x
  2. Step 2: Convert to fraction form
    138,911.04/191,696.85 = 75,249.90/x
  3. Step 3: Cross multiply
    138,911.04x = 191,696.85 × 75,249.90
  4. Step 4: Simplify right side
    138,911.04x = 14,425,168,792.82
  5. Step 5: Solve for x
    x = 14,425,168,792.82/138,911.04
  6. Step 6: Final answer
    x = 103,844.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.