Home / 185,713.04-256,277-100,828.28

Finding the Fourth Proportional to 185,713.04, 256,277 and 100,828.28

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Solution

The fourth proportional to 185,713.04, 256,277 and 100,828.28 is: 139,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,713.04 : 256,277 = 100,828.28 : x
  2. Step 2: Convert to fraction form
    185,713.04/256,277 = 100,828.28/x
  3. Step 3: Cross multiply
    185,713.04x = 256,277 × 100,828.28
  4. Step 4: Simplify right side
    185,713.04x = 25,839,969,113.56
  5. Step 5: Solve for x
    x = 25,839,969,113.56/185,713.04
  6. Step 6: Final answer
    x = 139,139.23

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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.