Home / 113,733.04-156,939-65,977.12

Finding the Fourth Proportional to 113,733.04, 156,939 and 65,977.12

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Solution

The fourth proportional to 113,733.04, 156,939 and 65,977.12 is: 91,041.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,733.04 : 156,939 = 65,977.12 : x
  2. Step 2: Convert to fraction form
    113,733.04/156,939 = 65,977.12/x
  3. Step 3: Cross multiply
    113,733.04x = 156,939 × 65,977.12
  4. Step 4: Simplify right side
    113,733.04x = 10,354,383,235.68
  5. Step 5: Solve for x
    x = 10,354,383,235.68/113,733.04
  6. Step 6: Final answer
    x = 91,041.12

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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.