Home / 100,946.52-139,306.20-58,529.64

Finding the Fourth Proportional to 100,946.52, 139,306.20 and 58,529.64

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Solution

The fourth proportional to 100,946.52, 139,306.20 and 58,529.64 is: 80,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,946.52 : 139,306.20 = 58,529.64 : x
  2. Step 2: Convert to fraction form
    100,946.52/139,306.20 = 58,529.64/x
  3. Step 3: Cross multiply
    100,946.52x = 139,306.20 × 58,529.64
  4. Step 4: Simplify right side
    100,946.52x = 8,153,541,735.77
  5. Step 5: Solve for x
    x = 8,153,541,735.77/100,946.52
  6. Step 6: Final answer
    x = 80,770.90

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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.