Home / 156,074.10-233,715.15-85,874.10

Finding the Fourth Proportional to 156,074.10, 233,715.15 and 85,874.10

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Solution

The fourth proportional to 156,074.10, 233,715.15 and 85,874.10 is: 128,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,074.10 : 233,715.15 = 85,874.10 : x
  2. Step 2: Convert to fraction form
    156,074.10/233,715.15 = 85,874.10/x
  3. Step 3: Cross multiply
    156,074.10x = 233,715.15 × 85,874.10
  4. Step 4: Simplify right side
    156,074.10x = 20,070,078,162.62
  5. Step 5: Solve for x
    x = 20,070,078,162.62/156,074.10
  6. Step 6: Final answer
    x = 128,593.27

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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.