Home / 119,121.12-164,391.03-68,820.12

Finding the Fourth Proportional to 119,121.12, 164,391.03 and 68,820.12

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Solution

The fourth proportional to 119,121.12, 164,391.03 and 68,820.12 is: 94,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,121.12 : 164,391.03 = 68,820.12 : x
  2. Step 2: Convert to fraction form
    119,121.12/164,391.03 = 68,820.12/x
  3. Step 3: Cross multiply
    119,121.12x = 164,391.03 × 68,820.12
  4. Step 4: Simplify right side
    119,121.12x = 11,313,410,411.52
  5. Step 5: Solve for x
    x = 11,313,410,411.52/119,121.12
  6. Step 6: Final answer
    x = 94,974.01

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1.5x scale

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.