Home / 156,392.18-215,921.01-102,772.34

Finding the Fourth Proportional to 156,392.18, 215,921.01 and 102,772.34

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Solution

The fourth proportional to 156,392.18, 215,921.01 and 102,772.34 is: 141,891.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,392.18 : 215,921.01 = 102,772.34 : x
  2. Step 2: Convert to fraction form
    156,392.18/215,921.01 = 102,772.34/x
  3. Step 3: Cross multiply
    156,392.18x = 215,921.01 × 102,772.34
  4. Step 4: Simplify right side
    156,392.18x = 22,190,707,452.86
  5. Step 5: Solve for x
    x = 22,190,707,452.86/156,392.18
  6. Step 6: Final answer
    x = 141,891.41

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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.