Home / 185,783.79-256,372.07-100,900.65

Finding the Fourth Proportional to 185,783.79, 256,372.07 and 100,900.65

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Solution

The fourth proportional to 185,783.79, 256,372.07 and 100,900.65 is: 139,237.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,783.79 : 256,372.07 = 100,900.65 : x
  2. Step 2: Convert to fraction form
    185,783.79/256,372.07 = 100,900.65/x
  3. Step 3: Cross multiply
    185,783.79x = 256,372.07 × 100,900.65
  4. Step 4: Simplify right side
    185,783.79x = 25,868,108,504.85
  5. Step 5: Solve for x
    x = 25,868,108,504.85/185,783.79
  6. Step 6: Final answer
    x = 139,237.70

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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.