Home / 156,995.82-216,544.46-103,263.66

Finding the Fourth Proportional to 156,995.82, 216,544.46 and 103,263.66

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Solution

The fourth proportional to 156,995.82, 216,544.46 and 103,263.66 is: 142,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,995.82 : 216,544.46 = 103,263.66 : x
  2. Step 2: Convert to fraction form
    156,995.82/216,544.46 = 103,263.66/x
  3. Step 3: Cross multiply
    156,995.82x = 216,544.46 × 103,263.66
  4. Step 4: Simplify right side
    156,995.82x = 22,361,172,976.01
  5. Step 5: Solve for x
    x = 22,361,172,976.01/156,995.82
  6. Step 6: Final answer
    x = 142,431.65

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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.