Home / 156,935.43-216,570.36-85,314.96

Finding the Fourth Proportional to 156,935.43, 216,570.36 and 85,314.96

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Solution

The fourth proportional to 156,935.43, 216,570.36 and 85,314.96 is: 117,734.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.43 : 216,570.36 = 85,314.96 : x
  2. Step 2: Convert to fraction form
    156,935.43/216,570.36 = 85,314.96/x
  3. Step 3: Cross multiply
    156,935.43x = 216,570.36 × 85,314.96
  4. Step 4: Simplify right side
    156,935.43x = 18,476,691,600.59
  5. Step 5: Solve for x
    x = 18,476,691,600.59/156,935.43
  6. Step 6: Final answer
    x = 117,734.35

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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.