Home / 156,662.38-216,194.36-85,042.45

Finding the Fourth Proportional to 156,662.38, 216,194.36 and 85,042.45

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Solution

The fourth proportional to 156,662.38, 216,194.36 and 85,042.45 is: 117,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,662.38 : 216,194.36 = 85,042.45 : x
  2. Step 2: Convert to fraction form
    156,662.38/216,194.36 = 85,042.45/x
  3. Step 3: Cross multiply
    156,662.38x = 216,194.36 × 85,042.45
  4. Step 4: Simplify right side
    156,662.38x = 18,385,697,625.37
  5. Step 5: Solve for x
    x = 18,385,697,625.37/156,662.38
  6. Step 6: Final answer
    x = 117,358.73

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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.