Home / 156,992.10-216,651.27-85,373.25

Finding the Fourth Proportional to 156,992.10, 216,651.27 and 85,373.25

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Solution

The fourth proportional to 156,992.10, 216,651.27 and 85,373.25 is: 117,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,992.10 : 216,651.27 = 85,373.25 : x
  2. Step 2: Convert to fraction form
    156,992.10/216,651.27 = 85,373.25/x
  3. Step 3: Cross multiply
    156,992.10x = 216,651.27 × 85,373.25
  4. Step 4: Simplify right side
    156,992.10x = 18,496,223,036.53
  5. Step 5: Solve for x
    x = 18,496,223,036.53/156,992.10
  6. Step 6: Final answer
    x = 117,816.27

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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.