Home / 156,688.18-216,226.32-85,067.59

Finding the Fourth Proportional to 156,688.18, 216,226.32 and 85,067.59

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Solution

The fourth proportional to 156,688.18, 216,226.32 and 85,067.59 is: 117,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,688.18 : 216,226.32 = 85,067.59 : x
  2. Step 2: Convert to fraction form
    156,688.18/216,226.32 = 85,067.59/x
  3. Step 3: Cross multiply
    156,688.18x = 216,226.32 × 85,067.59
  4. Step 4: Simplify right side
    156,688.18x = 18,393,851,936.97
  5. Step 5: Solve for x
    x = 18,393,851,936.97/156,688.18
  6. Step 6: Final answer
    x = 117,391.45

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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.