Home / 113,589.56-156,756.77-65,195.66

Finding the Fourth Proportional to 113,589.56, 156,756.77 and 65,195.66

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Solution

The fourth proportional to 113,589.56, 156,756.77 and 65,195.66 is: 89,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,589.56 : 156,756.77 = 65,195.66 : x
  2. Step 2: Convert to fraction form
    113,589.56/156,756.77 = 65,195.66/x
  3. Step 3: Cross multiply
    113,589.56x = 156,756.77 × 65,195.66
  4. Step 4: Simplify right side
    113,589.56x = 10,219,859,969.86
  5. Step 5: Solve for x
    x = 10,219,859,969.86/113,589.56
  6. Step 6: Final answer
    x = 89,971.83

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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.