Home / 191,986.97-287,947.63-51,712.79

Finding the Fourth Proportional to 191,986.97, 287,947.63 and 51,712.79

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Solution

The fourth proportional to 191,986.97, 287,947.63 and 51,712.79 is: 77,560.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,986.97 : 287,947.63 = 51,712.79 : x
  2. Step 2: Convert to fraction form
    191,986.97/287,947.63 = 51,712.79/x
  3. Step 3: Cross multiply
    191,986.97x = 287,947.63 × 51,712.79
  4. Step 4: Simplify right side
    191,986.97x = 14,890,573,752.17
  5. Step 5: Solve for x
    x = 14,890,573,752.17/191,986.97
  6. Step 6: Final answer
    x = 77,560.34

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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.