Home / 185,599.47-256,127.99-100,716.56

Finding the Fourth Proportional to 185,599.47, 256,127.99 and 100,716.56

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Solution

The fourth proportional to 185,599.47, 256,127.99 and 100,716.56 is: 138,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,599.47 : 256,127.99 = 100,716.56 : x
  2. Step 2: Convert to fraction form
    185,599.47/256,127.99 = 100,716.56/x
  3. Step 3: Cross multiply
    185,599.47x = 256,127.99 × 100,716.56
  4. Step 4: Simplify right side
    185,599.47x = 25,796,328,288.29
  5. Step 5: Solve for x
    x = 25,796,328,288.29/185,599.47
  6. Step 6: Final answer
    x = 138,989.23

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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.