Home / 191,731.70-264,601.31-105,690.57

Finding the Fourth Proportional to 191,731.70, 264,601.31 and 105,690.57

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Solution

The fourth proportional to 191,731.70, 264,601.31 and 105,690.57 is: 145,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,731.70 : 264,601.31 = 105,690.57 : x
  2. Step 2: Convert to fraction form
    191,731.70/264,601.31 = 105,690.57/x
  3. Step 3: Cross multiply
    191,731.70x = 264,601.31 × 105,690.57
  4. Step 4: Simplify right side
    191,731.70x = 27,965,863,276.65
  5. Step 5: Solve for x
    x = 27,965,863,276.65/191,731.70
  6. Step 6: Final answer
    x = 145,859.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.