Home / 105,013.70-144,906.01-64,198.36

Finding the Fourth Proportional to 105,013.70, 144,906.01 and 64,198.36

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Solution

The fourth proportional to 105,013.70, 144,906.01 and 64,198.36 is: 88,585.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,013.70 : 144,906.01 = 64,198.36 : x
  2. Step 2: Convert to fraction form
    105,013.70/144,906.01 = 64,198.36/x
  3. Step 3: Cross multiply
    105,013.70x = 144,906.01 × 64,198.36
  4. Step 4: Simplify right side
    105,013.70x = 9,302,728,196.14
  5. Step 5: Solve for x
    x = 9,302,728,196.14/105,013.70
  6. Step 6: Final answer
    x = 88,585.85

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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.