Home / 156,712.35-235,169.33-86,641.95

Finding the Fourth Proportional to 156,712.35, 235,169.33 and 86,641.95

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Solution

The fourth proportional to 156,712.35, 235,169.33 and 86,641.95 is: 130,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,712.35 : 235,169.33 = 86,641.95 : x
  2. Step 2: Convert to fraction form
    156,712.35/235,169.33 = 86,641.95/x
  3. Step 3: Cross multiply
    156,712.35x = 235,169.33 × 86,641.95
  4. Step 4: Simplify right side
    156,712.35x = 20,375,528,898.18
  5. Step 5: Solve for x
    x = 20,375,528,898.18/156,712.35
  6. Step 6: Final answer
    x = 130,018.65

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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.