Home / 185,520.49-256,018.92-100,638.16

Finding the Fourth Proportional to 185,520.49, 256,018.92 and 100,638.16

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Solution

The fourth proportional to 185,520.49, 256,018.92 and 100,638.16 is: 138,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,520.49 : 256,018.92 = 100,638.16 : x
  2. Step 2: Convert to fraction form
    185,520.49/256,018.92 = 100,638.16/x
  3. Step 3: Cross multiply
    185,520.49x = 256,018.92 × 100,638.16
  4. Step 4: Simplify right side
    185,520.49x = 25,765,273,033.99
  5. Step 5: Solve for x
    x = 25,765,273,033.99/185,520.49
  6. Step 6: Final answer
    x = 138,881.01

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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.