Home / 156,114.62-215,438.16-84,494.64

Finding the Fourth Proportional to 156,114.62, 215,438.16 and 84,494.64

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Solution

The fourth proportional to 156,114.62, 215,438.16 and 84,494.64 is: 116,602.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,114.62 : 215,438.16 = 84,494.64 : x
  2. Step 2: Convert to fraction form
    156,114.62/215,438.16 = 84,494.64/x
  3. Step 3: Cross multiply
    156,114.62x = 215,438.16 × 84,494.64
  4. Step 4: Simplify right side
    156,114.62x = 18,203,369,771.46
  5. Step 5: Solve for x
    x = 18,203,369,771.46/156,114.62
  6. Step 6: Final answer
    x = 116,602.59

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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.