Home / 189,291.20-261,222.67-103,252.03

Finding the Fourth Proportional to 189,291.20, 261,222.67 and 103,252.03

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Solution

The fourth proportional to 189,291.20, 261,222.67 and 103,252.03 is: 142,488.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,291.20 : 261,222.67 = 103,252.03 : x
  2. Step 2: Convert to fraction form
    189,291.20/261,222.67 = 103,252.03/x
  3. Step 3: Cross multiply
    189,291.20x = 261,222.67 × 103,252.03
  4. Step 4: Simplify right side
    189,291.20x = 26,971,769,137.15
  5. Step 5: Solve for x
    x = 26,971,769,137.15/189,291.20
  6. Step 6: Final answer
    x = 142,488.24

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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.