Home / 141,612.76-195,402.74-81,172.28

Finding the Fourth Proportional to 141,612.76, 195,402.74 and 81,172.28

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Solution

The fourth proportional to 141,612.76, 195,402.74 and 81,172.28 is: 112,004.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,612.76 : 195,402.74 = 81,172.28 : x
  2. Step 2: Convert to fraction form
    141,612.76/195,402.74 = 81,172.28/x
  3. Step 3: Cross multiply
    141,612.76x = 195,402.74 × 81,172.28
  4. Step 4: Simplify right side
    141,612.76x = 15,861,285,924.05
  5. Step 5: Solve for x
    x = 15,861,285,924.05/141,612.76
  6. Step 6: Final answer
    x = 112,004.64

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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.