Home / 137,767.27-190,118.73-77,338.03

Finding the Fourth Proportional to 137,767.27, 190,118.73 and 77,338.03

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Solution

The fourth proportional to 137,767.27, 190,118.73 and 77,338.03 is: 106,726.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,767.27 : 190,118.73 = 77,338.03 : x
  2. Step 2: Convert to fraction form
    137,767.27/190,118.73 = 77,338.03/x
  3. Step 3: Cross multiply
    137,767.27x = 190,118.73 × 77,338.03
  4. Step 4: Simplify right side
    137,767.27x = 14,703,408,044.30
  5. Step 5: Solve for x
    x = 14,703,408,044.30/137,767.27
  6. Step 6: Final answer
    x = 106,726.42

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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.