Home / 156,815.30-235,244.55-68,066.30

Finding the Fourth Proportional to 156,815.30, 235,244.55 and 68,066.30

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Solution

The fourth proportional to 156,815.30, 235,244.55 and 68,066.30 is: 102,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.30 : 235,244.55 = 68,066.30 : x
  2. Step 2: Convert to fraction form
    156,815.30/235,244.55 = 68,066.30/x
  3. Step 3: Cross multiply
    156,815.30x = 235,244.55 × 68,066.30
  4. Step 4: Simplify right side
    156,815.30x = 16,012,226,113.67
  5. Step 5: Solve for x
    x = 16,012,226,113.67/156,815.30
  6. Step 6: Final answer
    x = 102,108.83

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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.