Home / 104,561.61-156,754.25-45,352.70

Finding the Fourth Proportional to 104,561.61, 156,754.25 and 45,352.70

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Solution

The fourth proportional to 104,561.61, 156,754.25 and 45,352.70 is: 67,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,561.61 : 156,754.25 = 45,352.70 : x
  2. Step 2: Convert to fraction form
    104,561.61/156,754.25 = 45,352.70/x
  3. Step 3: Cross multiply
    104,561.61x = 156,754.25 × 45,352.70
  4. Step 4: Simplify right side
    104,561.61x = 7,109,228,473.98
  5. Step 5: Solve for x
    x = 7,109,228,473.98/104,561.61
  6. Step 6: Final answer
    x = 67,990.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.