Home / 191,839.92-287,784.45-102,971.58

Finding the Fourth Proportional to 191,839.92, 287,784.45 and 102,971.58

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Solution

The fourth proportional to 191,839.92, 287,784.45 and 102,971.58 is: 154,470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,839.92 : 287,784.45 = 102,971.58 : x
  2. Step 2: Convert to fraction form
    191,839.92/287,784.45 = 102,971.58/x
  3. Step 3: Cross multiply
    191,839.92x = 287,784.45 × 102,971.58
  4. Step 4: Simplify right side
    191,839.92x = 29,633,619,515.93
  5. Step 5: Solve for x
    x = 29,633,619,515.93/191,839.92
  6. Step 6: Final answer
    x = 154,470.56

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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.