Home / 101,237.28-139,708.49-55,916.42

Finding the Fourth Proportional to 101,237.28, 139,708.49 and 55,916.42

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Solution

The fourth proportional to 101,237.28, 139,708.49 and 55,916.42 is: 77,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,237.28 : 139,708.49 = 55,916.42 : x
  2. Step 2: Convert to fraction form
    101,237.28/139,708.49 = 55,916.42/x
  3. Step 3: Cross multiply
    101,237.28x = 139,708.49 × 55,916.42
  4. Step 4: Simplify right side
    101,237.28x = 7,811,997,626.28
  5. Step 5: Solve for x
    x = 7,811,997,626.28/101,237.28
  6. Step 6: Final answer
    x = 77,165.23

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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.