Home / 101,133.20-139,564.41-55,812.35

Finding the Fourth Proportional to 101,133.20, 139,564.41 and 55,812.35

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Solution

The fourth proportional to 101,133.20, 139,564.41 and 55,812.35 is: 77,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,133.20 : 139,564.41 = 55,812.35 : x
  2. Step 2: Convert to fraction form
    101,133.20/139,564.41 = 55,812.35/x
  3. Step 3: Cross multiply
    101,133.20x = 139,564.41 × 55,812.35
  4. Step 4: Simplify right side
    101,133.20x = 7,789,417,698.46
  5. Step 5: Solve for x
    x = 7,789,417,698.46/101,133.20
  6. Step 6: Final answer
    x = 77,021.37

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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.