Home / 101,211.24-139,672.62-55,889.16

Finding the Fourth Proportional to 101,211.24, 139,672.62 and 55,889.16

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Solution

The fourth proportional to 101,211.24, 139,672.62 and 55,889.16 is: 77,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,211.24 : 139,672.62 = 55,889.16 : x
  2. Step 2: Convert to fraction form
    101,211.24/139,672.62 = 55,889.16/x
  3. Step 3: Cross multiply
    101,211.24x = 139,672.62 × 55,889.16
  4. Step 4: Simplify right side
    101,211.24x = 7,806,185,406.80
  5. Step 5: Solve for x
    x = 7,806,185,406.80/101,211.24
  6. Step 6: Final answer
    x = 77,127.65

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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.