Home / 109,612.20-164,240.10-99,114.60

Finding the Fourth Proportional to 109,612.20, 164,240.10 and 99,114.60

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Solution

The fourth proportional to 109,612.20, 164,240.10 and 99,114.60 is: 148,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,612.20 : 164,240.10 = 99,114.60 : x
  2. Step 2: Convert to fraction form
    109,612.20/164,240.10 = 99,114.60/x
  3. Step 3: Cross multiply
    109,612.20x = 164,240.10 × 99,114.60
  4. Step 4: Simplify right side
    109,612.20x = 16,278,591,815.46
  5. Step 5: Solve for x
    x = 16,278,591,815.46/109,612.20
  6. Step 6: Final answer
    x = 148,510.77

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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.