Home / 136,394.37-204,214.05-69,690.87

Finding the Fourth Proportional to 136,394.37, 204,214.05 and 69,690.87

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Solution

The fourth proportional to 136,394.37, 204,214.05 and 69,690.87 is: 104,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,394.37 : 204,214.05 = 69,690.87 : x
  2. Step 2: Convert to fraction form
    136,394.37/204,214.05 = 69,690.87/x
  3. Step 3: Cross multiply
    136,394.37x = 204,214.05 × 69,690.87
  4. Step 4: Simplify right side
    136,394.37x = 14,231,854,810.72
  5. Step 5: Solve for x
    x = 14,231,854,810.72/136,394.37
  6. Step 6: Final answer
    x = 104,343.42

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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.