Home / 156,901.90-235,207.05-109,516.90

Finding the Fourth Proportional to 156,901.90, 235,207.05 and 109,516.90

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Solution

The fourth proportional to 156,901.90, 235,207.05 and 109,516.90 is: 164,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,901.90 : 235,207.05 = 109,516.90 : x
  2. Step 2: Convert to fraction form
    156,901.90/235,207.05 = 109,516.90/x
  3. Step 3: Cross multiply
    156,901.90x = 235,207.05 × 109,516.90
  4. Step 4: Simplify right side
    156,901.90x = 25,759,146,974.15
  5. Step 5: Solve for x
    x = 25,759,146,974.15/156,901.90
  6. Step 6: Final answer
    x = 164,173.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.