Home / 146,771.10-220,156.65-100,115.10

Finding the Fourth Proportional to 146,771.10, 220,156.65 and 100,115.10

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Solution

The fourth proportional to 146,771.10, 220,156.65 and 100,115.10 is: 150,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,771.10 : 220,156.65 = 100,115.10 : x
  2. Step 2: Convert to fraction form
    146,771.10/220,156.65 = 100,115.10/x
  3. Step 3: Cross multiply
    146,771.10x = 220,156.65 × 100,115.10
  4. Step 4: Simplify right side
    146,771.10x = 22,041,005,030.42
  5. Step 5: Solve for x
    x = 22,041,005,030.42/146,771.10
  6. Step 6: Final answer
    x = 150,172.65

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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.