Home / 191,481.57-287,221.89-51,240.19

Finding the Fourth Proportional to 191,481.57, 287,221.89 and 51,240.19

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Solution

The fourth proportional to 191,481.57, 287,221.89 and 51,240.19 is: 76,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,481.57 : 287,221.89 = 51,240.19 : x
  2. Step 2: Convert to fraction form
    191,481.57/287,221.89 = 51,240.19/x
  3. Step 3: Cross multiply
    191,481.57x = 287,221.89 × 51,240.19
  4. Step 4: Simplify right side
    191,481.57x = 14,717,304,215.76
  5. Step 5: Solve for x
    x = 14,717,304,215.76/191,481.57
  6. Step 6: Final answer
    x = 76,860.16

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1.5x scale

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.