Home / 207,538.12-286,383.18-122,638.96

Finding the Fourth Proportional to 207,538.12, 286,383.18 and 122,638.96

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Solution

The fourth proportional to 207,538.12, 286,383.18 and 122,638.96 is: 169,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,538.12 : 286,383.18 = 122,638.96 : x
  2. Step 2: Convert to fraction form
    207,538.12/286,383.18 = 122,638.96/x
  3. Step 3: Cross multiply
    207,538.12x = 286,383.18 × 122,638.96
  4. Step 4: Simplify right side
    207,538.12x = 35,121,735,356.69
  5. Step 5: Solve for x
    x = 35,121,735,356.69/207,538.12
  6. Step 6: Final answer
    x = 169,230.29

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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.