Home / 136,581.80-204,739.65-61,720.79

Finding the Fourth Proportional to 136,581.80, 204,739.65 and 61,720.79

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Solution

The fourth proportional to 136,581.80, 204,739.65 and 61,720.79 is: 92,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,581.80 : 204,739.65 = 61,720.79 : x
  2. Step 2: Convert to fraction form
    136,581.80/204,739.65 = 61,720.79/x
  3. Step 3: Cross multiply
    136,581.80x = 204,739.65 × 61,720.79
  4. Step 4: Simplify right side
    136,581.80x = 12,636,691,918.63
  5. Step 5: Solve for x
    x = 12,636,691,918.63/136,581.80
  6. Step 6: Final answer
    x = 92,521.06

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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.