Home / 156,794.32-216,377.67-85,175.74

Finding the Fourth Proportional to 156,794.32, 216,377.67 and 85,175.74

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Solution

The fourth proportional to 156,794.32, 216,377.67 and 85,175.74 is: 117,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,794.32 : 216,377.67 = 85,175.74 : x
  2. Step 2: Convert to fraction form
    156,794.32/216,377.67 = 85,175.74/x
  3. Step 3: Cross multiply
    156,794.32x = 216,377.67 × 85,175.74
  4. Step 4: Simplify right side
    156,794.32x = 18,430,128,161.73
  5. Step 5: Solve for x
    x = 18,430,128,161.73/156,794.32
  6. Step 6: Final answer
    x = 117,543.34

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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.