Home / 156,695.60-235,144.20-86,625.20

Finding the Fourth Proportional to 156,695.60, 235,144.20 and 86,625.20

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Solution

The fourth proportional to 156,695.60, 235,144.20 and 86,625.20 is: 129,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,695.60 : 235,144.20 = 86,625.20 : x
  2. Step 2: Convert to fraction form
    156,695.60/235,144.20 = 86,625.20/x
  3. Step 3: Cross multiply
    156,695.60x = 235,144.20 × 86,625.20
  4. Step 4: Simplify right side
    156,695.60x = 20,369,413,353.84
  5. Step 5: Solve for x
    x = 20,369,413,353.84/156,695.60
  6. Step 6: Final answer
    x = 129,993.52

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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.