Home / 156,620.10-234,930.15-112,661.40

Finding the Fourth Proportional to 156,620.10, 234,930.15 and 112,661.40

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Solution

The fourth proportional to 156,620.10, 234,930.15 and 112,661.40 is: 168,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,620.10 : 234,930.15 = 112,661.40 : x
  2. Step 2: Convert to fraction form
    156,620.10/234,930.15 = 112,661.40/x
  3. Step 3: Cross multiply
    156,620.10x = 234,930.15 × 112,661.40
  4. Step 4: Simplify right side
    156,620.10x = 26,467,559,601.21
  5. Step 5: Solve for x
    x = 26,467,559,601.21/156,620.10
  6. Step 6: Final answer
    x = 168,992.10

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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.