Home / 181,343.77-250,254.53-100,778.80

Finding the Fourth Proportional to 181,343.77, 250,254.53 and 100,778.80

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Solution

The fourth proportional to 181,343.77, 250,254.53 and 100,778.80 is: 139,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,343.77 : 250,254.53 = 100,778.80 : x
  2. Step 2: Convert to fraction form
    181,343.77/250,254.53 = 100,778.80/x
  3. Step 3: Cross multiply
    181,343.77x = 250,254.53 × 100,778.80
  4. Step 4: Simplify right side
    181,343.77x = 25,220,351,227.96
  5. Step 5: Solve for x
    x = 25,220,351,227.96/181,343.77
  6. Step 6: Final answer
    x = 139,074.81

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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.