Home / 136,437.24-188,231.63-82,702.65

Finding the Fourth Proportional to 136,437.24, 188,231.63 and 82,702.65

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Solution

The fourth proportional to 136,437.24, 188,231.63 and 82,702.65 is: 114,098.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,437.24 : 188,231.63 = 82,702.65 : x
  2. Step 2: Convert to fraction form
    136,437.24/188,231.63 = 82,702.65/x
  3. Step 3: Cross multiply
    136,437.24x = 188,231.63 × 82,702.65
  4. Step 4: Simplify right side
    136,437.24x = 15,567,254,614.82
  5. Step 5: Solve for x
    x = 15,567,254,614.82/136,437.24
  6. Step 6: Final answer
    x = 114,098.28

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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.