Home / 131,401.21-181,347.86-80,448.23

Finding the Fourth Proportional to 131,401.21, 181,347.86 and 80,448.23

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Solution

The fourth proportional to 131,401.21, 181,347.86 and 80,448.23 is: 111,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,401.21 : 181,347.86 = 80,448.23 : x
  2. Step 2: Convert to fraction form
    131,401.21/181,347.86 = 80,448.23/x
  3. Step 3: Cross multiply
    131,401.21x = 181,347.86 × 80,448.23
  4. Step 4: Simplify right side
    131,401.21x = 14,589,114,351.29
  5. Step 5: Solve for x
    x = 14,589,114,351.29/131,401.21
  6. Step 6: Final answer
    x = 111,027.25

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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.