Home / 136,507.47-188,374.32-76,084.71

Finding the Fourth Proportional to 136,507.47, 188,374.32 and 76,084.71

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Solution

The fourth proportional to 136,507.47, 188,374.32 and 76,084.71 is: 104,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,507.47 : 188,374.32 = 76,084.71 : x
  2. Step 2: Convert to fraction form
    136,507.47/188,374.32 = 76,084.71/x
  3. Step 3: Cross multiply
    136,507.47x = 188,374.32 × 76,084.71
  4. Step 4: Simplify right side
    136,507.47x = 14,332,405,508.65
  5. Step 5: Solve for x
    x = 14,332,405,508.65/136,507.47
  6. Step 6: Final answer
    x = 104,993.56

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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.