Home / 109,663.43-151,327.09-61,921.49

Finding the Fourth Proportional to 109,663.43, 151,327.09 and 61,921.49

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Solution

The fourth proportional to 109,663.43, 151,327.09 and 61,921.49 is: 85,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,663.43 : 151,327.09 = 61,921.49 : x
  2. Step 2: Convert to fraction form
    109,663.43/151,327.09 = 61,921.49/x
  3. Step 3: Cross multiply
    109,663.43x = 151,327.09 × 61,921.49
  4. Step 4: Simplify right side
    109,663.43x = 9,370,399,113.68
  5. Step 5: Solve for x
    x = 9,370,399,113.68/109,663.43
  6. Step 6: Final answer
    x = 85,446.89

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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.