Home / 141,683.72-195,472.18-80,394.42

Finding the Fourth Proportional to 141,683.72, 195,472.18 and 80,394.42

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Solution

The fourth proportional to 141,683.72, 195,472.18 and 80,394.42 is: 110,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,683.72 : 195,472.18 = 80,394.42 : x
  2. Step 2: Convert to fraction form
    141,683.72/195,472.18 = 80,394.42/x
  3. Step 3: Cross multiply
    141,683.72x = 195,472.18 × 80,394.42
  4. Step 4: Simplify right side
    141,683.72x = 15,714,872,336.25
  5. Step 5: Solve for x
    x = 15,714,872,336.25/141,683.72
  6. Step 6: Final answer
    x = 110,915.16

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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.