Home / 141,055.20-194,655.36-77,391.60

Finding the Fourth Proportional to 141,055.20, 194,655.36 and 77,391.60

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Solution

The fourth proportional to 141,055.20, 194,655.36 and 77,391.60 is: 106,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,055.20 : 194,655.36 = 77,391.60 : x
  2. Step 2: Convert to fraction form
    141,055.20/194,655.36 = 77,391.60/x
  3. Step 3: Cross multiply
    141,055.20x = 194,655.36 × 77,391.60
  4. Step 4: Simplify right side
    141,055.20x = 15,064,689,758.98
  5. Step 5: Solve for x
    x = 15,064,689,758.98/141,055.20
  6. Step 6: Final answer
    x = 106,799.96

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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.