Home / 141,683.48-195,522.20-78,020.76

Finding the Fourth Proportional to 141,683.48, 195,522.20 and 78,020.76

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Solution

The fourth proportional to 141,683.48, 195,522.20 and 78,020.76 is: 107,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,683.48 : 195,522.20 = 78,020.76 : x
  2. Step 2: Convert to fraction form
    141,683.48/195,522.20 = 78,020.76/x
  3. Step 3: Cross multiply
    141,683.48x = 195,522.20 × 78,020.76
  4. Step 4: Simplify right side
    141,683.48x = 15,254,790,640.87
  5. Step 5: Solve for x
    x = 15,254,790,640.87/141,683.48
  6. Step 6: Final answer
    x = 107,668.10

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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.