Home / 191,422.77-287,134.16-51,177.75

Finding the Fourth Proportional to 191,422.77, 287,134.16 and 51,177.75

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Solution

The fourth proportional to 191,422.77, 287,134.16 and 51,177.75 is: 76,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,422.77 : 287,134.16 = 51,177.75 : x
  2. Step 2: Convert to fraction form
    191,422.77/287,134.16 = 51,177.75/x
  3. Step 3: Cross multiply
    191,422.77x = 287,134.16 × 51,177.75
  4. Step 4: Simplify right side
    191,422.77x = 14,694,880,001.05
  5. Step 5: Solve for x
    x = 14,694,880,001.05/191,422.77
  6. Step 6: Final answer
    x = 76,766.63

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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.