Home / 156,799.32-216,384.60-85,180.74

Finding the Fourth Proportional to 156,799.32, 216,384.60 and 85,180.74

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Solution

The fourth proportional to 156,799.32, 216,384.60 and 85,180.74 is: 117,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799.32 : 216,384.60 = 85,180.74 : x
  2. Step 2: Convert to fraction form
    156,799.32/216,384.60 = 85,180.74/x
  3. Step 3: Cross multiply
    156,799.32x = 216,384.60 × 85,180.74
  4. Step 4: Simplify right side
    156,799.32x = 18,431,800,352.60
  5. Step 5: Solve for x
    x = 18,431,800,352.60/156,799.32
  6. Step 6: Final answer
    x = 117,550.26

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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.