Home / 185,821.10-256,423.43-100,938.06

Finding the Fourth Proportional to 185,821.10, 256,423.43 and 100,938.06

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Solution

The fourth proportional to 185,821.10, 256,423.43 and 100,938.06 is: 139,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,821.10 : 256,423.43 = 100,938.06 : x
  2. Step 2: Convert to fraction form
    185,821.10/256,423.43 = 100,938.06/x
  3. Step 3: Cross multiply
    185,821.10x = 256,423.43 × 100,938.06
  4. Step 4: Simplify right side
    185,821.10x = 25,882,883,562.75
  5. Step 5: Solve for x
    x = 25,882,883,562.75/185,821.10
  6. Step 6: Final answer
    x = 139,289.26

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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.