Home / 185,605.26-256,140.18-100,722.36

Finding the Fourth Proportional to 185,605.26, 256,140.18 and 100,722.36

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Solution

The fourth proportional to 185,605.26, 256,140.18 and 100,722.36 is: 138,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,605.26 : 256,140.18 = 100,722.36 : x
  2. Step 2: Convert to fraction form
    185,605.26/256,140.18 = 100,722.36/x
  3. Step 3: Cross multiply
    185,605.26x = 256,140.18 × 100,722.36
  4. Step 4: Simplify right side
    185,605.26x = 25,799,043,420.42
  5. Step 5: Solve for x
    x = 25,799,043,420.42/185,605.26
  6. Step 6: Final answer
    x = 138,999.53

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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.