Home / 141,520.02-195,325.55-81,131.22

Finding the Fourth Proportional to 141,520.02, 195,325.55 and 81,131.22

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Solution

The fourth proportional to 141,520.02, 195,325.55 and 81,131.22 is: 111,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,520.02 : 195,325.55 = 81,131.22 : x
  2. Step 2: Convert to fraction form
    141,520.02/195,325.55 = 81,131.22/x
  3. Step 3: Cross multiply
    141,520.02x = 195,325.55 × 81,131.22
  4. Step 4: Simplify right side
    141,520.02x = 15,847,000,168.67
  5. Step 5: Solve for x
    x = 15,847,000,168.67/141,520.02
  6. Step 6: Final answer
    x = 111,977.09

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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.