Home / 109,861.18-151,612.51-62,111.68

Finding the Fourth Proportional to 109,861.18, 151,612.51 and 62,111.68

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Solution

The fourth proportional to 109,861.18, 151,612.51 and 62,111.68 is: 85,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,861.18 : 151,612.51 = 62,111.68 : x
  2. Step 2: Convert to fraction form
    109,861.18/151,612.51 = 62,111.68/x
  3. Step 3: Cross multiply
    109,861.18x = 151,612.51 × 62,111.68
  4. Step 4: Simplify right side
    109,861.18x = 9,416,907,705.12
  5. Step 5: Solve for x
    x = 9,416,907,705.12/109,861.18
  6. Step 6: Final answer
    x = 85,716.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.