Home / 84,102.17-126,155.57-27,178.51

Finding the Fourth Proportional to 84,102.17, 126,155.57 and 27,178.51

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Solution

The fourth proportional to 84,102.17, 126,155.57 and 27,178.51 is: 40,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,102.17 : 126,155.57 = 27,178.51 : x
  2. Step 2: Convert to fraction form
    84,102.17/126,155.57 = 27,178.51/x
  3. Step 3: Cross multiply
    84,102.17x = 126,155.57 × 27,178.51
  4. Step 4: Simplify right side
    84,102.17x = 3,428,719,896.31
  5. Step 5: Solve for x
    x = 3,428,719,896.31/84,102.17
  6. Step 6: Final answer
    x = 40,768.51

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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.