Home / 156,730.35-235,196.33-86,659.95

Finding the Fourth Proportional to 156,730.35, 235,196.33 and 86,659.95

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Solution

The fourth proportional to 156,730.35, 235,196.33 and 86,659.95 is: 130,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.35 : 235,196.33 = 86,659.95 : x
  2. Step 2: Convert to fraction form
    156,730.35/235,196.33 = 86,659.95/x
  3. Step 3: Cross multiply
    156,730.35x = 235,196.33 × 86,659.95
  4. Step 4: Simplify right side
    156,730.35x = 20,382,101,764.68
  5. Step 5: Solve for x
    x = 20,382,101,764.68/156,730.35
  6. Step 6: Final answer
    x = 130,045.66

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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.