Home / 101,288.17-139,777.14-55,969.28

Finding the Fourth Proportional to 101,288.17, 139,777.14 and 55,969.28

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Solution

The fourth proportional to 101,288.17, 139,777.14 and 55,969.28 is: 77,237.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,288.17 : 139,777.14 = 55,969.28 : x
  2. Step 2: Convert to fraction form
    101,288.17/139,777.14 = 55,969.28/x
  3. Step 3: Cross multiply
    101,288.17x = 139,777.14 × 55,969.28
  4. Step 4: Simplify right side
    101,288.17x = 7,823,225,886.26
  5. Step 5: Solve for x
    x = 7,823,225,886.26/101,288.17
  6. Step 6: Final answer
    x = 77,237.31

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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.