Home / 185,701.21-256,268.10-100,816.45

Finding the Fourth Proportional to 185,701.21, 256,268.10 and 100,816.45

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Solution

The fourth proportional to 185,701.21, 256,268.10 and 100,816.45 is: 139,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,701.21 : 256,268.10 = 100,816.45 : x
  2. Step 2: Convert to fraction form
    185,701.21/256,268.10 = 100,816.45/x
  3. Step 3: Cross multiply
    185,701.21x = 256,268.10 × 100,816.45
  4. Step 4: Simplify right side
    185,701.21x = 25,836,039,827.64
  5. Step 5: Solve for x
    x = 25,836,039,827.64/185,701.21
  6. Step 6: Final answer
    x = 139,126.94

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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.