Home / 185,116.78-255,461.34-100,233.64

Finding the Fourth Proportional to 185,116.78, 255,461.34 and 100,233.64

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Solution

The fourth proportional to 185,116.78, 255,461.34 and 100,233.64 is: 138,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,116.78 : 255,461.34 = 100,233.64 : x
  2. Step 2: Convert to fraction form
    185,116.78/255,461.34 = 100,233.64/x
  3. Step 3: Cross multiply
    185,116.78x = 255,461.34 × 100,233.64
  4. Step 4: Simplify right side
    185,116.78x = 25,605,819,987.48
  5. Step 5: Solve for x
    x = 25,605,819,987.48/185,116.78
  6. Step 6: Final answer
    x = 138,322.52

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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.