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Finding the Fourth Proportional to 121,150.60, 181,725.90 and 113,374.60

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Solution

The fourth proportional to 121,150.60, 181,725.90 and 113,374.60 is: 170,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,150.60 : 181,725.90 = 113,374.60 : x
  2. Step 2: Convert to fraction form
    121,150.60/181,725.90 = 113,374.60/x
  3. Step 3: Cross multiply
    121,150.60x = 181,725.90 × 113,374.60
  4. Step 4: Simplify right side
    121,150.60x = 20,603,101,222.14
  5. Step 5: Solve for x
    x = 20,603,101,222.14/121,150.60
  6. Step 6: Final answer
    x = 170,061.90

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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.