Home / 262,132.19-393,199.21-79,764.75

Finding the Fourth Proportional to 262,132.19, 393,199.21 and 79,764.75

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Solution

The fourth proportional to 262,132.19, 393,199.21 and 79,764.75 is: 119,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,132.19 : 393,199.21 = 79,764.75 : x
  2. Step 2: Convert to fraction form
    262,132.19/393,199.21 = 79,764.75/x
  3. Step 3: Cross multiply
    262,132.19x = 393,199.21 × 79,764.75
  4. Step 4: Simplify right side
    262,132.19x = 31,363,436,785.55
  5. Step 5: Solve for x
    x = 31,363,436,785.55/262,132.19
  6. Step 6: Final answer
    x = 119,647.41

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1.5x scale

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.