Home / 100,951.24-139,320.58-55,637.35

Finding the Fourth Proportional to 100,951.24, 139,320.58 and 55,637.35

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Solution

The fourth proportional to 100,951.24, 139,320.58 and 55,637.35 is: 76,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,951.24 : 139,320.58 = 55,637.35 : x
  2. Step 2: Convert to fraction form
    100,951.24/139,320.58 = 55,637.35/x
  3. Step 3: Cross multiply
    100,951.24x = 139,320.58 × 55,637.35
  4. Step 4: Simplify right side
    100,951.24x = 7,751,427,871.66
  5. Step 5: Solve for x
    x = 7,751,427,871.66/100,951.24
  6. Step 6: Final answer
    x = 76,783.88

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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.