Home / 260,131.41-390,197.27-73,142.91

Finding the Fourth Proportional to 260,131.41, 390,197.27 and 73,142.91

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Solution

The fourth proportional to 260,131.41, 390,197.27 and 73,142.91 is: 109,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,131.41 : 390,197.27 = 73,142.91 : x
  2. Step 2: Convert to fraction form
    260,131.41/390,197.27 = 73,142.91/x
  3. Step 3: Cross multiply
    260,131.41x = 390,197.27 × 73,142.91
  4. Step 4: Simplify right side
    260,131.41x = 28,540,163,436.14
  5. Step 5: Solve for x
    x = 28,540,163,436.14/260,131.41
  6. Step 6: Final answer
    x = 109,714.41

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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.