Home / 157,131.32-216,841.41-85,511.30

Finding the Fourth Proportional to 157,131.32, 216,841.41 and 85,511.30

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Solution

The fourth proportional to 157,131.32, 216,841.41 and 85,511.30 is: 118,005.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,131.32 : 216,841.41 = 85,511.30 : x
  2. Step 2: Convert to fraction form
    157,131.32/216,841.41 = 85,511.30/x
  3. Step 3: Cross multiply
    157,131.32x = 216,841.41 × 85,511.30
  4. Step 4: Simplify right side
    157,131.32x = 18,542,389,778.73
  5. Step 5: Solve for x
    x = 18,542,389,778.73/157,131.32
  6. Step 6: Final answer
    x = 118,005.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.