Home / 127,979.94-191,887.90-53,151.74

Finding the Fourth Proportional to 127,979.94, 191,887.90 and 53,151.74

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Solution

The fourth proportional to 127,979.94, 191,887.90 and 53,151.74 is: 79,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,979.94 : 191,887.90 = 53,151.74 : x
  2. Step 2: Convert to fraction form
    127,979.94/191,887.90 = 53,151.74/x
  3. Step 3: Cross multiply
    127,979.94x = 191,887.90 × 53,151.74
  4. Step 4: Simplify right side
    127,979.94x = 10,199,175,397.21
  5. Step 5: Solve for x
    x = 10,199,175,397.21/127,979.94
  6. Step 6: Final answer
    x = 79,693.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.