Home / 136,219.80-204,378.90-69,691.26

Finding the Fourth Proportional to 136,219.80, 204,378.90 and 69,691.26

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Solution

The fourth proportional to 136,219.80, 204,378.90 and 69,691.26 is: 104,562.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,219.80 : 204,378.90 = 69,691.26 : x
  2. Step 2: Convert to fraction form
    136,219.80/204,378.90 = 69,691.26/x
  3. Step 3: Cross multiply
    136,219.80x = 204,378.90 × 69,691.26
  4. Step 4: Simplify right side
    136,219.80x = 14,243,423,058.41
  5. Step 5: Solve for x
    x = 14,243,423,058.41/136,219.80
  6. Step 6: Final answer
    x = 104,562.06

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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.