Home / 156,864.36-216,323.82-103,194.84

Finding the Fourth Proportional to 156,864.36, 216,323.82 and 103,194.84

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Solution

The fourth proportional to 156,864.36, 216,323.82 and 103,194.84 is: 142,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,864.36 : 216,323.82 = 103,194.84 : x
  2. Step 2: Convert to fraction form
    156,864.36/216,323.82 = 103,194.84/x
  3. Step 3: Cross multiply
    156,864.36x = 216,323.82 × 103,194.84
  4. Step 4: Simplify right side
    156,864.36x = 22,323,501,993.09
  5. Step 5: Solve for x
    x = 22,323,501,993.09/156,864.36
  6. Step 6: Final answer
    x = 142,310.86

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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.