Home / 152,134.80-209,954.00-87,613.83

Finding the Fourth Proportional to 152,134.80, 209,954.00 and 87,613.83

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Solution

The fourth proportional to 152,134.80, 209,954.00 and 87,613.83 is: 120,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,134.80 : 209,954.00 = 87,613.83 : x
  2. Step 2: Convert to fraction form
    152,134.80/209,954.00 = 87,613.83/x
  3. Step 3: Cross multiply
    152,134.80x = 209,954.00 × 87,613.83
  4. Step 4: Simplify right side
    152,134.80x = 18,394,873,625.75
  5. Step 5: Solve for x
    x = 18,394,873,625.75/152,134.80
  6. Step 6: Final answer
    x = 120,911.68

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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.