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Finding the Fourth Proportional to 101,129.54, 151,715.91 and 38,799.50

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Solution

The fourth proportional to 101,129.54, 151,715.91 and 38,799.50 is: 58,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,129.54 : 151,715.91 = 38,799.50 : x
  2. Step 2: Convert to fraction form
    101,129.54/151,715.91 = 38,799.50/x
  3. Step 3: Cross multiply
    101,129.54x = 151,715.91 × 38,799.50
  4. Step 4: Simplify right side
    101,129.54x = 5,886,501,450.05
  5. Step 5: Solve for x
    x = 5,886,501,450.05/101,129.54
  6. Step 6: Final answer
    x = 58,207.54

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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.