Home / 100,554.04-138,766.25-55,233.93

Finding the Fourth Proportional to 100,554.04, 138,766.25 and 55,233.93

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Solution

The fourth proportional to 100,554.04, 138,766.25 and 55,233.93 is: 76,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,554.04 : 138,766.25 = 55,233.93 : x
  2. Step 2: Convert to fraction form
    100,554.04/138,766.25 = 55,233.93/x
  3. Step 3: Cross multiply
    100,554.04x = 138,766.25 × 55,233.93
  4. Step 4: Simplify right side
    100,554.04x = 7,664,605,062.69
  5. Step 5: Solve for x
    x = 7,664,605,062.69/100,554.04
  6. Step 6: Final answer
    x = 76,223.74

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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.