Home / 141,869.72-195,777.60-77,339.64

Finding the Fourth Proportional to 141,869.72, 195,777.60 and 77,339.64

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Solution

The fourth proportional to 141,869.72, 195,777.60 and 77,339.64 is: 106,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,869.72 : 195,777.60 = 77,339.64 : x
  2. Step 2: Convert to fraction form
    141,869.72/195,777.60 = 77,339.64/x
  3. Step 3: Cross multiply
    141,869.72x = 195,777.60 × 77,339.64
  4. Step 4: Simplify right side
    141,869.72x = 15,141,369,104.06
  5. Step 5: Solve for x
    x = 15,141,369,104.06/141,869.72
  6. Step 6: Final answer
    x = 106,727.28

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1.5x scale

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.