Home / 141,639.93-195,462.56-77,977.77

Finding the Fourth Proportional to 141,639.93, 195,462.56 and 77,977.77

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Solution

The fourth proportional to 141,639.93, 195,462.56 and 77,977.77 is: 107,609.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,639.93 : 195,462.56 = 77,977.77 : x
  2. Step 2: Convert to fraction form
    141,639.93/195,462.56 = 77,977.77/x
  3. Step 3: Cross multiply
    141,639.93x = 195,462.56 × 77,977.77
  4. Step 4: Simplify right side
    141,639.93x = 15,241,734,157.40
  5. Step 5: Solve for x
    x = 15,241,734,157.40/141,639.93
  6. Step 6: Final answer
    x = 107,609.02

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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.