Home / 101,427.24-139,922.49-65,628.81

Finding the Fourth Proportional to 101,427.24, 139,922.49 and 65,628.81

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Solution

The fourth proportional to 101,427.24, 139,922.49 and 65,628.81 is: 90,537.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,427.24 : 139,922.49 = 65,628.81 : x
  2. Step 2: Convert to fraction form
    101,427.24/139,922.49 = 65,628.81/x
  3. Step 3: Cross multiply
    101,427.24x = 139,922.49 × 65,628.81
  4. Step 4: Simplify right side
    101,427.24x = 9,182,946,510.94
  5. Step 5: Solve for x
    x = 9,182,946,510.94/101,427.24
  6. Step 6: Final answer
    x = 90,537.28

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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.