Home / 191,586.42-287,414.55-65,220.65

Finding the Fourth Proportional to 191,586.42, 287,414.55 and 65,220.65

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Solution

The fourth proportional to 191,586.42, 287,414.55 and 65,220.65 is: 97,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,586.42 : 287,414.55 = 65,220.65 : x
  2. Step 2: Convert to fraction form
    191,586.42/287,414.55 = 65,220.65/x
  3. Step 3: Cross multiply
    191,586.42x = 287,414.55 × 65,220.65
  4. Step 4: Simplify right side
    191,586.42x = 18,745,362,333.38
  5. Step 5: Solve for x
    x = 18,745,362,333.38/191,586.42
  6. Step 6: Final answer
    x = 97,842.86

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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.