Home / 136,467.21-188,319.38-76,036.29

Finding the Fourth Proportional to 136,467.21, 188,319.38 and 76,036.29

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Solution

The fourth proportional to 136,467.21, 188,319.38 and 76,036.29 is: 104,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,467.21 : 188,319.38 = 76,036.29 : x
  2. Step 2: Convert to fraction form
    136,467.21/188,319.38 = 76,036.29/x
  3. Step 3: Cross multiply
    136,467.21x = 188,319.38 × 76,036.29
  4. Step 4: Simplify right side
    136,467.21x = 14,319,107,920.57
  5. Step 5: Solve for x
    x = 14,319,107,920.57/136,467.21
  6. Step 6: Final answer
    x = 104,927.10

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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.