Home / 185,665.39-256,223.51-100,787.92

Finding the Fourth Proportional to 185,665.39, 256,223.51 and 100,787.92

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Solution

The fourth proportional to 185,665.39, 256,223.51 and 100,787.92 is: 139,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,665.39 : 256,223.51 = 100,787.92 : x
  2. Step 2: Convert to fraction form
    185,665.39/256,223.51 = 100,787.92/x
  3. Step 3: Cross multiply
    185,665.39x = 256,223.51 × 100,787.92
  4. Step 4: Simplify right side
    185,665.39x = 25,824,234,628.00
  5. Step 5: Solve for x
    x = 25,824,234,628.00/185,665.39
  6. Step 6: Final answer
    x = 139,090.19

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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.