Home / 276,682.05-415,081.39-89,678.97

Finding the Fourth Proportional to 276,682.05, 415,081.39 and 89,678.97

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Solution

The fourth proportional to 276,682.05, 415,081.39 and 89,678.97 is: 134,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,682.05 : 415,081.39 = 89,678.97 : x
  2. Step 2: Convert to fraction form
    276,682.05/415,081.39 = 89,678.97/x
  3. Step 3: Cross multiply
    276,682.05x = 415,081.39 × 89,678.97
  4. Step 4: Simplify right side
    276,682.05x = 37,224,071,521.37
  5. Step 5: Solve for x
    x = 37,224,071,521.37/276,682.05
  6. Step 6: Final answer
    x = 134,537.36

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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.