Home / 181,487.25-250,438.10-100,909.80

Finding the Fourth Proportional to 181,487.25, 250,438.10 and 100,909.80

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Solution

The fourth proportional to 181,487.25, 250,438.10 and 100,909.80 is: 139,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,487.25 : 250,438.10 = 100,909.80 : x
  2. Step 2: Convert to fraction form
    181,487.25/250,438.10 = 100,909.80/x
  3. Step 3: Cross multiply
    181,487.25x = 250,438.10 × 100,909.80
  4. Step 4: Simplify right side
    181,487.25x = 25,271,658,078.83
  5. Step 5: Solve for x
    x = 25,271,658,078.83/181,487.25
  6. Step 6: Final answer
    x = 139,247.57

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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.