Home / 101,288.46-139,784.64-55,966.44

Finding the Fourth Proportional to 101,288.46, 139,784.64 and 55,966.44

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Solution

The fourth proportional to 101,288.46, 139,784.64 and 55,966.44 is: 77,237.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,288.46 : 139,784.64 = 55,966.44 : x
  2. Step 2: Convert to fraction form
    101,288.46/139,784.64 = 55,966.44/x
  3. Step 3: Cross multiply
    101,288.46x = 139,784.64 × 55,966.44
  4. Step 4: Simplify right side
    101,288.46x = 7,823,248,667.48
  5. Step 5: Solve for x
    x = 7,823,248,667.48/101,288.46
  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.