Home / 146,859.20-202,663.20-79,790.72

Finding the Fourth Proportional to 146,859.20, 202,663.20 and 79,790.72

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Solution

The fourth proportional to 146,859.20, 202,663.20 and 79,790.72 is: 110,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,859.20 : 202,663.20 = 79,790.72 : x
  2. Step 2: Convert to fraction form
    146,859.20/202,663.20 = 79,790.72/x
  3. Step 3: Cross multiply
    146,859.20x = 202,663.20 × 79,790.72
  4. Step 4: Simplify right side
    146,859.20x = 16,170,642,645.50
  5. Step 5: Solve for x
    x = 16,170,642,645.50/146,859.20
  6. Step 6: Final answer
    x = 110,109.84

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1.5x scale

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.