Home / 113,529.40-155,536.00-109,272.85

Finding the Fourth Proportional to 113,529.40, 155,536.00 and 109,272.85

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Solution

The fourth proportional to 113,529.40, 155,536.00 and 109,272.85 is: 149,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,529.40 : 155,536.00 = 109,272.85 : x
  2. Step 2: Convert to fraction form
    113,529.40/155,536.00 = 109,272.85/x
  3. Step 3: Cross multiply
    113,529.40x = 155,536.00 × 109,272.85
  4. Step 4: Simplify right side
    113,529.40x = 16,995,861,335.58
  5. Step 5: Solve for x
    x = 16,995,861,335.58/113,529.40
  6. Step 6: Final answer
    x = 149,704.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.