Home / 185,631.76-256,171.69-100,748.89

Finding the Fourth Proportional to 185,631.76, 256,171.69 and 100,748.89

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Solution

The fourth proportional to 185,631.76, 256,171.69 and 100,748.89 is: 139,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,631.76 : 256,171.69 = 100,748.89 : x
  2. Step 2: Convert to fraction form
    185,631.76/256,171.69 = 100,748.89/x
  3. Step 3: Cross multiply
    185,631.76x = 256,171.69 × 100,748.89
  4. Step 4: Simplify right side
    185,631.76x = 25,809,013,416.92
  5. Step 5: Solve for x
    x = 25,809,013,416.92/185,631.76
  6. Step 6: Final answer
    x = 139,033.39

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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.