Home / 156,164.28-215,359.20-102,495.84

Finding the Fourth Proportional to 156,164.28, 215,359.20 and 102,495.84

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Solution

The fourth proportional to 156,164.28, 215,359.20 and 102,495.84 is: 141,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,164.28 : 215,359.20 = 102,495.84 : x
  2. Step 2: Convert to fraction form
    156,164.28/215,359.20 = 102,495.84/x
  3. Step 3: Cross multiply
    156,164.28x = 215,359.20 × 102,495.84
  4. Step 4: Simplify right side
    156,164.28x = 22,073,422,105.73
  5. Step 5: Solve for x
    x = 22,073,422,105.73/156,164.28
  6. Step 6: Final answer
    x = 141,347.45

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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.