Home / 156,522.36-215,662.86-106,133.88

Finding the Fourth Proportional to 156,522.36, 215,662.86 and 106,133.88

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Solution

The fourth proportional to 156,522.36, 215,662.86 and 106,133.88 is: 146,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,522.36 : 215,662.86 = 106,133.88 : x
  2. Step 2: Convert to fraction form
    156,522.36/215,662.86 = 106,133.88/x
  3. Step 3: Cross multiply
    156,522.36x = 215,662.86 × 106,133.88
  4. Step 4: Simplify right side
    156,522.36x = 22,889,136,103.70
  5. Step 5: Solve for x
    x = 22,889,136,103.70/156,522.36
  6. Step 6: Final answer
    x = 146,235.57

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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.