Home / 154,993.32-213,835.75-101,309.31

Finding the Fourth Proportional to 154,993.32, 213,835.75 and 101,309.31

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Solution

The fourth proportional to 154,993.32, 213,835.75 and 101,309.31 is: 139,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,993.32 : 213,835.75 = 101,309.31 : x
  2. Step 2: Convert to fraction form
    154,993.32/213,835.75 = 101,309.31/x
  3. Step 3: Cross multiply
    154,993.32x = 213,835.75 × 101,309.31
  4. Step 4: Simplify right side
    154,993.32x = 21,663,552,285.83
  5. Step 5: Solve for x
    x = 21,663,552,285.83/154,993.32
  6. Step 6: Final answer
    x = 139,770.88

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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.