Home / 191,722.48-287,475.94-131,821.36

Finding the Fourth Proportional to 191,722.48, 287,475.94 and 131,821.36

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Solution

The fourth proportional to 191,722.48, 287,475.94 and 131,821.36 is: 197,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,722.48 : 287,475.94 = 131,821.36 : x
  2. Step 2: Convert to fraction form
    191,722.48/287,475.94 = 131,821.36/x
  3. Step 3: Cross multiply
    191,722.48x = 287,475.94 × 131,821.36
  4. Step 4: Simplify right side
    191,722.48x = 37,895,469,378.08
  5. Step 5: Solve for x
    x = 37,895,469,378.08/191,722.48
  6. Step 6: Final answer
    x = 197,657.93

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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.