Home / 156,096.56-215,267.03-103,615.69

Finding the Fourth Proportional to 156,096.56, 215,267.03 and 103,615.69

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Solution

The fourth proportional to 156,096.56, 215,267.03 and 103,615.69 is: 142,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,096.56 : 215,267.03 = 103,615.69 : x
  2. Step 2: Convert to fraction form
    156,096.56/215,267.03 = 103,615.69/x
  3. Step 3: Cross multiply
    156,096.56x = 215,267.03 × 103,615.69
  4. Step 4: Simplify right side
    156,096.56x = 22,305,041,847.70
  5. Step 5: Solve for x
    x = 22,305,041,847.70/156,096.56
  6. Step 6: Final answer
    x = 142,892.59

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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.