Home / 153,124.11-229,194.72-81,868.68

Finding the Fourth Proportional to 153,124.11, 229,194.72 and 81,868.68

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Solution

The fourth proportional to 153,124.11, 229,194.72 and 81,868.68 is: 122,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,124.11 : 229,194.72 = 81,868.68 : x
  2. Step 2: Convert to fraction form
    153,124.11/229,194.72 = 81,868.68/x
  3. Step 3: Cross multiply
    153,124.11x = 229,194.72 × 81,868.68
  4. Step 4: Simplify right side
    153,124.11x = 18,763,869,189.37
  5. Step 5: Solve for x
    x = 18,763,869,189.37/153,124.11
  6. Step 6: Final answer
    x = 122,540.27

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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.