Home / 185,598.14-256,126.13-100,715.21

Finding the Fourth Proportional to 185,598.14, 256,126.13 and 100,715.21

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Solution

The fourth proportional to 185,598.14, 256,126.13 and 100,715.21 is: 138,987.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,598.14 : 256,126.13 = 100,715.21 : x
  2. Step 2: Convert to fraction form
    185,598.14/256,126.13 = 100,715.21/x
  3. Step 3: Cross multiply
    185,598.14x = 256,126.13 × 100,715.21
  4. Step 4: Simplify right side
    185,598.14x = 25,795,796,969.44
  5. Step 5: Solve for x
    x = 25,795,796,969.44/185,598.14
  6. Step 6: Final answer
    x = 138,987.37

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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.