Home / 156,219.55-215,583.18-84,599.69

Finding the Fourth Proportional to 156,219.55, 215,583.18 and 84,599.69

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Solution

The fourth proportional to 156,219.55, 215,583.18 and 84,599.69 is: 116,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,219.55 : 215,583.18 = 84,599.69 : x
  2. Step 2: Convert to fraction form
    156,219.55/215,583.18 = 84,599.69/x
  3. Step 3: Cross multiply
    156,219.55x = 215,583.18 × 84,599.69
  4. Step 4: Simplify right side
    156,219.55x = 18,238,270,197.21
  5. Step 5: Solve for x
    x = 18,238,270,197.21/156,219.55
  6. Step 6: Final answer
    x = 116,747.68

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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.