Home / 100,919.75-151,266.48-40,934.29

Finding the Fourth Proportional to 100,919.75, 151,266.48 and 40,934.29

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Solution

The fourth proportional to 100,919.75, 151,266.48 and 40,934.29 is: 61,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,919.75 : 151,266.48 = 40,934.29 : x
  2. Step 2: Convert to fraction form
    100,919.75/151,266.48 = 40,934.29/x
  3. Step 3: Cross multiply
    100,919.75x = 151,266.48 × 40,934.29
  4. Step 4: Simplify right side
    100,919.75x = 6,191,985,427.93
  5. Step 5: Solve for x
    x = 6,191,985,427.93/100,919.75
  6. Step 6: Final answer
    x = 61,355.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.