Home / 141,222.15-194,887.89-77,561.28

Finding the Fourth Proportional to 141,222.15, 194,887.89 and 77,561.28

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Solution

The fourth proportional to 141,222.15, 194,887.89 and 77,561.28 is: 107,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,222.15 : 194,887.89 = 77,561.28 : x
  2. Step 2: Convert to fraction form
    141,222.15/194,887.89 = 77,561.28/x
  3. Step 3: Cross multiply
    141,222.15x = 194,887.89 × 77,561.28
  4. Step 4: Simplify right side
    141,222.15x = 15,115,754,204.90
  5. Step 5: Solve for x
    x = 15,115,754,204.90/141,222.15
  6. Step 6: Final answer
    x = 107,035.29

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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.