Home / 109,346.20-163,889.70-56,728.60

Finding the Fourth Proportional to 109,346.20, 163,889.70 and 56,728.60

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Solution

The fourth proportional to 109,346.20, 163,889.70 and 56,728.60 is: 85,025.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,346.20 : 163,889.70 = 56,728.60 : x
  2. Step 2: Convert to fraction form
    109,346.20/163,889.70 = 56,728.60/x
  3. Step 3: Cross multiply
    109,346.20x = 163,889.70 × 56,728.60
  4. Step 4: Simplify right side
    109,346.20x = 9,297,233,235.42
  5. Step 5: Solve for x
    x = 9,297,233,235.42/109,346.20
  6. Step 6: Final answer
    x = 85,025.66

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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.