Home / 152,971.80-229,378.91-68,659.68

Finding the Fourth Proportional to 152,971.80, 229,378.91 and 68,659.68

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Solution

The fourth proportional to 152,971.80, 229,378.91 and 68,659.68 is: 102,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,971.80 : 229,378.91 = 68,659.68 : x
  2. Step 2: Convert to fraction form
    152,971.80/229,378.91 = 68,659.68/x
  3. Step 3: Cross multiply
    152,971.80x = 229,378.91 × 68,659.68
  4. Step 4: Simplify right side
    152,971.80x = 15,749,082,216.05
  5. Step 5: Solve for x
    x = 15,749,082,216.05/152,971.80
  6. Step 6: Final answer
    x = 102,954.15

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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.