Home / 113,525.83-156,665.66-65,806.86

Finding the Fourth Proportional to 113,525.83, 156,665.66 and 65,806.86

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Solution

The fourth proportional to 113,525.83, 156,665.66 and 65,806.86 is: 90,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,525.83 : 156,665.66 = 65,806.86 : x
  2. Step 2: Convert to fraction form
    113,525.83/156,665.66 = 65,806.86/x
  3. Step 3: Cross multiply
    113,525.83x = 156,665.66 × 65,806.86
  4. Step 4: Simplify right side
    113,525.83x = 10,309,675,154.43
  5. Step 5: Solve for x
    x = 10,309,675,154.43/113,525.83
  6. Step 6: Final answer
    x = 90,813.48

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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.