Home / 100,780.29-151,157.36-41,607.96

Finding the Fourth Proportional to 100,780.29, 151,157.36 and 41,607.96

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Solution

The fourth proportional to 100,780.29, 151,157.36 and 41,607.96 is: 62,406.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,780.29 : 151,157.36 = 41,607.96 : x
  2. Step 2: Convert to fraction form
    100,780.29/151,157.36 = 41,607.96/x
  3. Step 3: Cross multiply
    100,780.29x = 151,157.36 × 41,607.96
  4. Step 4: Simplify right side
    100,780.29x = 6,289,349,180.55
  5. Step 5: Solve for x
    x = 6,289,349,180.55/100,780.29
  6. Step 6: Final answer
    x = 62,406.54

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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.