Home / 100,964.58-139,332.07-55,644.22

Finding the Fourth Proportional to 100,964.58, 139,332.07 and 55,644.22

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Solution

The fourth proportional to 100,964.58, 139,332.07 and 55,644.22 is: 76,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,964.58 : 139,332.07 = 55,644.22 : x
  2. Step 2: Convert to fraction form
    100,964.58/139,332.07 = 55,644.22/x
  3. Step 3: Cross multiply
    100,964.58x = 139,332.07 × 55,644.22
  4. Step 4: Simplify right side
    100,964.58x = 7,753,024,356.14
  5. Step 5: Solve for x
    x = 7,753,024,356.14/100,964.58
  6. Step 6: Final answer
    x = 76,789.55

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1.5x scale

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.