Home / 156,694.60-235,142.70-86,624.20

Finding the Fourth Proportional to 156,694.60, 235,142.70 and 86,624.20

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Solution

The fourth proportional to 156,694.60, 235,142.70 and 86,624.20 is: 129,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,694.60 : 235,142.70 = 86,624.20 : x
  2. Step 2: Convert to fraction form
    156,694.60/235,142.70 = 86,624.20/x
  3. Step 3: Cross multiply
    156,694.60x = 235,142.70 × 86,624.20
  4. Step 4: Simplify right side
    156,694.60x = 20,369,048,273.34
  5. Step 5: Solve for x
    x = 20,369,048,273.34/156,694.60
  6. Step 6: Final answer
    x = 129,992.02

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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.