Home / 137,788.97-190,134.05-77,366.25

Finding the Fourth Proportional to 137,788.97, 190,134.05 and 77,366.25

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Solution

The fourth proportional to 137,788.97, 190,134.05 and 77,366.25 is: 106,757.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,788.97 : 190,134.05 = 77,366.25 : x
  2. Step 2: Convert to fraction form
    137,788.97/190,134.05 = 77,366.25/x
  3. Step 3: Cross multiply
    137,788.97x = 190,134.05 × 77,366.25
  4. Step 4: Simplify right side
    137,788.97x = 14,709,958,058.98
  5. Step 5: Solve for x
    x = 14,709,958,058.98/137,788.97
  6. Step 6: Final answer
    x = 106,757.16

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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.