Home / 101,211.24-139,672.62-55,889.13

Finding the Fourth Proportional to 101,211.24, 139,672.62 and 55,889.13

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Solution

The fourth proportional to 101,211.24, 139,672.62 and 55,889.13 is: 77,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,211.24 : 139,672.62 = 55,889.13 : x
  2. Step 2: Convert to fraction form
    101,211.24/139,672.62 = 55,889.13/x
  3. Step 3: Cross multiply
    101,211.24x = 139,672.62 × 55,889.13
  4. Step 4: Simplify right side
    101,211.24x = 7,806,181,216.62
  5. Step 5: Solve for x
    x = 7,806,181,216.62/101,211.24
  6. Step 6: Final answer
    x = 77,127.61

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1.5x scale

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.