Home / 146,939.22-202,778.40-85,683.75

Finding the Fourth Proportional to 146,939.22, 202,778.40 and 85,683.75

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Solution

The fourth proportional to 146,939.22, 202,778.40 and 85,683.75 is: 118,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,939.22 : 202,778.40 = 85,683.75 : x
  2. Step 2: Convert to fraction form
    146,939.22/202,778.40 = 85,683.75/x
  3. Step 3: Cross multiply
    146,939.22x = 202,778.40 × 85,683.75
  4. Step 4: Simplify right side
    146,939.22x = 17,374,813,731
  5. Step 5: Solve for x
    x = 17,374,813,731/146,939.22
  6. Step 6: Final answer
    x = 118,244.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.