Home / 154,912.24-213,795.28-86,947.57

Finding the Fourth Proportional to 154,912.24, 213,795.28 and 86,947.57

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Solution

The fourth proportional to 154,912.24, 213,795.28 and 86,947.57 is: 119,996.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,912.24 : 213,795.28 = 86,947.57 : x
  2. Step 2: Convert to fraction form
    154,912.24/213,795.28 = 86,947.57/x
  3. Step 3: Cross multiply
    154,912.24x = 213,795.28 × 86,947.57
  4. Step 4: Simplify right side
    154,912.24x = 18,588,980,073.47
  5. Step 5: Solve for x
    x = 18,588,980,073.47/154,912.24
  6. Step 6: Final answer
    x = 119,996.85

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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.