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Finding the Fourth Proportional to 156,969.65, 234,962.40 and 112,682.90

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Solution

The fourth proportional to 156,969.65, 234,962.40 and 112,682.90 is: 168,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.65 : 234,962.40 = 112,682.90 : x
  2. Step 2: Convert to fraction form
    156,969.65/234,962.40 = 112,682.90/x
  3. Step 3: Cross multiply
    156,969.65x = 234,962.40 × 112,682.90
  4. Step 4: Simplify right side
    156,969.65x = 26,476,244,622.96
  5. Step 5: Solve for x
    x = 26,476,244,622.96/156,969.65
  6. Step 6: Final answer
    x = 168,671.11

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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.