Home / 131,440.80-197,161.20-130,274.40

Finding the Fourth Proportional to 131,440.80, 197,161.20 and 130,274.40

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Solution

The fourth proportional to 131,440.80, 197,161.20 and 130,274.40 is: 195,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440.80 : 197,161.20 = 130,274.40 : x
  2. Step 2: Convert to fraction form
    131,440.80/197,161.20 = 130,274.40/x
  3. Step 3: Cross multiply
    131,440.80x = 197,161.20 × 130,274.40
  4. Step 4: Simplify right side
    131,440.80x = 25,685,057,033.28
  5. Step 5: Solve for x
    x = 25,685,057,033.28/131,440.80
  6. Step 6: Final answer
    x = 195,411.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.