Home / 235,485.35-324,983.94-138,753.66

Finding the Fourth Proportional to 235,485.35, 324,983.94 and 138,753.66

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Solution

The fourth proportional to 235,485.35, 324,983.94 and 138,753.66 is: 191,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,485.35 : 324,983.94 = 138,753.66 : x
  2. Step 2: Convert to fraction form
    235,485.35/324,983.94 = 138,753.66/x
  3. Step 3: Cross multiply
    235,485.35x = 324,983.94 × 138,753.66
  4. Step 4: Simplify right side
    235,485.35x = 45,092,711,116.22
  5. Step 5: Solve for x
    x = 45,092,711,116.22/235,485.35
  6. Step 6: Final answer
    x = 191,488.39

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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.