Home / 131,803.10-197,704.65-100,310.30

Finding the Fourth Proportional to 131,803.10, 197,704.65 and 100,310.30

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Solution

The fourth proportional to 131,803.10, 197,704.65 and 100,310.30 is: 150,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,803.10 : 197,704.65 = 100,310.30 : x
  2. Step 2: Convert to fraction form
    131,803.10/197,704.65 = 100,310.30/x
  3. Step 3: Cross multiply
    131,803.10x = 197,704.65 × 100,310.30
  4. Step 4: Simplify right side
    131,803.10x = 19,831,812,752.90
  5. Step 5: Solve for x
    x = 19,831,812,752.90/131,803.10
  6. Step 6: Final answer
    x = 150,465.45

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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.