Home / 68,070.97-102,111.32-18,150.81

Finding the Fourth Proportional to 68,070.97, 102,111.32 and 18,150.81

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Solution

The fourth proportional to 68,070.97, 102,111.32 and 18,150.81 is: 27,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,070.97 : 102,111.32 = 18,150.81 : x
  2. Step 2: Convert to fraction form
    68,070.97/102,111.32 = 18,150.81/x
  3. Step 3: Cross multiply
    68,070.97x = 102,111.32 × 18,150.81
  4. Step 4: Simplify right side
    68,070.97x = 1,853,403,168.17
  5. Step 5: Solve for x
    x = 1,853,403,168.17/68,070.97
  6. Step 6: Final answer
    x = 27,227.51

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1.5x scale

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.