Home / 150,947.72-208,310.28-86,416.70

Finding the Fourth Proportional to 150,947.72, 208,310.28 and 86,416.70

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Solution

The fourth proportional to 150,947.72, 208,310.28 and 86,416.70 is: 119,256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,947.72 : 208,310.28 = 86,416.70 : x
  2. Step 2: Convert to fraction form
    150,947.72/208,310.28 = 86,416.70/x
  3. Step 3: Cross multiply
    150,947.72x = 208,310.28 × 86,416.70
  4. Step 4: Simplify right side
    150,947.72x = 18,001,485,932.12
  5. Step 5: Solve for x
    x = 18,001,485,932.12/150,947.72
  6. Step 6: Final answer
    x = 119,256.43

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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.