Home / 100,827.72-139,141.14-55,504.74

Finding the Fourth Proportional to 100,827.72, 139,141.14 and 55,504.74

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Solution

The fourth proportional to 100,827.72, 139,141.14 and 55,504.74 is: 76,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,827.72 : 139,141.14 = 55,504.74 : x
  2. Step 2: Convert to fraction form
    100,827.72/139,141.14 = 55,504.74/x
  3. Step 3: Cross multiply
    100,827.72x = 139,141.14 × 55,504.74
  4. Step 4: Simplify right side
    100,827.72x = 7,722,992,799.00
  5. Step 5: Solve for x
    x = 7,722,992,799.00/100,827.72
  6. Step 6: Final answer
    x = 76,595.93

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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.