Home / 185,945.40-279,209.70-107,213.40

Finding the Fourth Proportional to 185,945.40, 279,209.70 and 107,213.40

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Solution

The fourth proportional to 185,945.40, 279,209.70 and 107,213.40 is: 160,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,945.40 : 279,209.70 = 107,213.40 : x
  2. Step 2: Convert to fraction form
    185,945.40/279,209.70 = 107,213.40/x
  3. Step 3: Cross multiply
    185,945.40x = 279,209.70 × 107,213.40
  4. Step 4: Simplify right side
    185,945.40x = 29,935,021,249.98
  5. Step 5: Solve for x
    x = 29,935,021,249.98/185,945.40
  6. Step 6: Final answer
    x = 160,988.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.