Home / 135,690.63-203,508.27-51,421.77

Finding the Fourth Proportional to 135,690.63, 203,508.27 and 51,421.77

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Solution

The fourth proportional to 135,690.63, 203,508.27 and 51,421.77 is: 77,122.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,690.63 : 203,508.27 = 51,421.77 : x
  2. Step 2: Convert to fraction form
    135,690.63/203,508.27 = 51,421.77/x
  3. Step 3: Cross multiply
    135,690.63x = 203,508.27 × 51,421.77
  4. Step 4: Simplify right side
    135,690.63x = 10,464,755,453.04
  5. Step 5: Solve for x
    x = 10,464,755,453.04/135,690.63
  6. Step 6: Final answer
    x = 77,122.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.