Home / 137,943.75-190,360.70-77,524.64

Finding the Fourth Proportional to 137,943.75, 190,360.70 and 77,524.64

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Solution

The fourth proportional to 137,943.75, 190,360.70 and 77,524.64 is: 106,983.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,943.75 : 190,360.70 = 77,524.64 : x
  2. Step 2: Convert to fraction form
    137,943.75/190,360.70 = 77,524.64/x
  3. Step 3: Cross multiply
    137,943.75x = 190,360.70 × 77,524.64
  4. Step 4: Simplify right side
    137,943.75x = 14,757,643,979.66
  5. Step 5: Solve for x
    x = 14,757,643,979.66/137,943.75
  6. Step 6: Final answer
    x = 106,983.06

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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.