Home / 141,120.80-194,837.90-87,462.75

Finding the Fourth Proportional to 141,120.80, 194,837.90 and 87,462.75

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Solution

The fourth proportional to 141,120.80, 194,837.90 and 87,462.75 is: 120,755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,120.80 : 194,837.90 = 87,462.75 : x
  2. Step 2: Convert to fraction form
    141,120.80/194,837.90 = 87,462.75/x
  3. Step 3: Cross multiply
    141,120.80x = 194,837.90 × 87,462.75
  4. Step 4: Simplify right side
    141,120.80x = 17,041,058,100.91
  5. Step 5: Solve for x
    x = 17,041,058,100.91/141,120.80
  6. Step 6: Final answer
    x = 120,755.12

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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.