Home / 102,489.12-153,832.06-49,935.51

Finding the Fourth Proportional to 102,489.12, 153,832.06 and 49,935.51

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Solution

The fourth proportional to 102,489.12, 153,832.06 and 49,935.51 is: 74,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,489.12 : 153,832.06 = 49,935.51 : x
  2. Step 2: Convert to fraction form
    102,489.12/153,832.06 = 49,935.51/x
  3. Step 3: Cross multiply
    102,489.12x = 153,832.06 × 49,935.51
  4. Step 4: Simplify right side
    102,489.12x = 7,681,682,865.52
  5. Step 5: Solve for x
    x = 7,681,682,865.52/102,489.12
  6. Step 6: Final answer
    x = 74,951.20

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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.