Home / 101,039.45-139,376.56-63,248.09

Finding the Fourth Proportional to 101,039.45, 139,376.56 and 63,248.09

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Solution

The fourth proportional to 101,039.45, 139,376.56 and 63,248.09 is: 87,246.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,039.45 : 139,376.56 = 63,248.09 : x
  2. Step 2: Convert to fraction form
    101,039.45/139,376.56 = 63,248.09/x
  3. Step 3: Cross multiply
    101,039.45x = 139,376.56 × 63,248.09
  4. Step 4: Simplify right side
    101,039.45x = 8,815,300,197.65
  5. Step 5: Solve for x
    x = 8,815,300,197.65/101,039.45
  6. Step 6: Final answer
    x = 87,246.13

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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.