Home / 141,292.18-194,983.05-77,629.82

Finding the Fourth Proportional to 141,292.18, 194,983.05 and 77,629.82

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Solution

The fourth proportional to 141,292.18, 194,983.05 and 77,629.82 is: 107,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,292.18 : 194,983.05 = 77,629.82 : x
  2. Step 2: Convert to fraction form
    141,292.18/194,983.05 = 77,629.82/x
  3. Step 3: Cross multiply
    141,292.18x = 194,983.05 × 77,629.82
  4. Step 4: Simplify right side
    141,292.18x = 15,136,499,074.55
  5. Step 5: Solve for x
    x = 15,136,499,074.55/141,292.18
  6. Step 6: Final answer
    x = 107,129.06

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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.