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Finding the Fourth Proportional to 100,888.44, 139,194.66 and 57,273.72

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Solution

The fourth proportional to 100,888.44, 139,194.66 and 57,273.72 is: 79,019.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,888.44 : 139,194.66 = 57,273.72 : x
  2. Step 2: Convert to fraction form
    100,888.44/139,194.66 = 57,273.72/x
  3. Step 3: Cross multiply
    100,888.44x = 139,194.66 × 57,273.72
  4. Step 4: Simplify right side
    100,888.44x = 7,972,195,982.34
  5. Step 5: Solve for x
    x = 7,972,195,982.34/100,888.44
  6. Step 6: Final answer
    x = 79,019.92

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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.