Home / 185,605.07-256,135.16-100,722.14

Finding the Fourth Proportional to 185,605.07, 256,135.16 and 100,722.14

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Solution

The fourth proportional to 185,605.07, 256,135.16 and 100,722.14 is: 138,996.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,605.07 : 256,135.16 = 100,722.14 : x
  2. Step 2: Convert to fraction form
    185,605.07/256,135.16 = 100,722.14/x
  3. Step 3: Cross multiply
    185,605.07x = 256,135.16 × 100,722.14
  4. Step 4: Simplify right side
    185,605.07x = 25,798,480,163.77
  5. Step 5: Solve for x
    x = 25,798,480,163.77/185,605.07
  6. Step 6: Final answer
    x = 138,996.63

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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.