Home / 117,906.08-162,856.50-85,589.12

Finding the Fourth Proportional to 117,906.08, 162,856.50 and 85,589.12

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Solution

The fourth proportional to 117,906.08, 162,856.50 and 85,589.12 is: 118,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,906.08 : 162,856.50 = 85,589.12 : x
  2. Step 2: Convert to fraction form
    117,906.08/162,856.50 = 85,589.12/x
  3. Step 3: Cross multiply
    117,906.08x = 162,856.50 × 85,589.12
  4. Step 4: Simplify right side
    117,906.08x = 13,938,744,521.28
  5. Step 5: Solve for x
    x = 13,938,744,521.28/117,906.08
  6. Step 6: Final answer
    x = 118,219.05

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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.