Home / 156,839.42-235,126.88-68,026.05

Finding the Fourth Proportional to 156,839.42, 235,126.88 and 68,026.05

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Solution

The fourth proportional to 156,839.42, 235,126.88 and 68,026.05 is: 101,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,839.42 : 235,126.88 = 68,026.05 : x
  2. Step 2: Convert to fraction form
    156,839.42/235,126.88 = 68,026.05/x
  3. Step 3: Cross multiply
    156,839.42x = 235,126.88 × 68,026.05
  4. Step 4: Simplify right side
    156,839.42x = 15,994,752,555.09
  5. Step 5: Solve for x
    x = 15,994,752,555.09/156,839.42
  6. Step 6: Final answer
    x = 101,981.72

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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.