Home / 185,522.24-256,018.92-100,639.64

Finding the Fourth Proportional to 185,522.24, 256,018.92 and 100,639.64

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Solution

The fourth proportional to 185,522.24, 256,018.92 and 100,639.64 is: 138,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,522.24 : 256,018.92 = 100,639.64 : x
  2. Step 2: Convert to fraction form
    185,522.24/256,018.92 = 100,639.64/x
  3. Step 3: Cross multiply
    185,522.24x = 256,018.92 × 100,639.64
  4. Step 4: Simplify right side
    185,522.24x = 25,765,651,941.99
  5. Step 5: Solve for x
    x = 25,765,651,941.99/185,522.24
  6. Step 6: Final answer
    x = 138,881.74

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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.