Home / 105,772.20-158,658.30-101,106.60

Finding the Fourth Proportional to 105,772.20, 158,658.30 and 101,106.60

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Solution

The fourth proportional to 105,772.20, 158,658.30 and 101,106.60 is: 151,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,772.20 : 158,658.30 = 101,106.60 : x
  2. Step 2: Convert to fraction form
    105,772.20/158,658.30 = 101,106.60/x
  3. Step 3: Cross multiply
    105,772.20x = 158,658.30 × 101,106.60
  4. Step 4: Simplify right side
    105,772.20x = 16,041,401,274.78
  5. Step 5: Solve for x
    x = 16,041,401,274.78/105,772.20
  6. Step 6: Final answer
    x = 151,659.90

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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.