Home / 156,834.16-235,119.00-68,020.80

Finding the Fourth Proportional to 156,834.16, 235,119.00 and 68,020.80

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Solution

The fourth proportional to 156,834.16, 235,119.00 and 68,020.80 is: 101,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,834.16 : 235,119.00 = 68,020.80 : x
  2. Step 2: Convert to fraction form
    156,834.16/235,119.00 = 68,020.80/x
  3. Step 3: Cross multiply
    156,834.16x = 235,119.00 × 68,020.80
  4. Step 4: Simplify right side
    156,834.16x = 15,992,981,848.58
  5. Step 5: Solve for x
    x = 15,992,981,848.58/156,834.16
  6. Step 6: Final answer
    x = 101,973.84

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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.