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Finding the Fourth Proportional to 103,151.56, 154,735.53 and 43,987.73

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Solution

The fourth proportional to 103,151.56, 154,735.53 and 43,987.73 is: 65,985.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,151.56 : 154,735.53 = 43,987.73 : x
  2. Step 2: Convert to fraction form
    103,151.56/154,735.53 = 43,987.73/x
  3. Step 3: Cross multiply
    103,151.56x = 154,735.53 × 43,987.73
  4. Step 4: Simplify right side
    103,151.56x = 6,806,464,715.05
  5. Step 5: Solve for x
    x = 6,806,464,715.05/103,151.56
  6. Step 6: Final answer
    x = 65,985.09

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1.5x scale

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.