Home / 185,711.90-256,283.13-100,828.94

Finding the Fourth Proportional to 185,711.90, 256,283.13 and 100,828.94

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Solution

The fourth proportional to 185,711.90, 256,283.13 and 100,828.94 is: 139,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,711.90 : 256,283.13 = 100,828.94 : x
  2. Step 2: Convert to fraction form
    185,711.90/256,283.13 = 100,828.94/x
  3. Step 3: Cross multiply
    185,711.90x = 256,283.13 × 100,828.94
  4. Step 4: Simplify right side
    185,711.90x = 25,840,756,337.78
  5. Step 5: Solve for x
    x = 25,840,756,337.78/185,711.90
  6. Step 6: Final answer
    x = 139,144.32

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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.