Home / 131,420.86-181,441.14-85,524.23

Finding the Fourth Proportional to 131,420.86, 181,441.14 and 85,524.23

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Solution

The fourth proportional to 131,420.86, 181,441.14 and 85,524.23 is: 118,075.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,420.86 : 181,441.14 = 85,524.23 : x
  2. Step 2: Convert to fraction form
    131,420.86/181,441.14 = 85,524.23/x
  3. Step 3: Cross multiply
    131,420.86x = 181,441.14 × 85,524.23
  4. Step 4: Simplify right side
    131,420.86x = 15,517,613,788.82
  5. Step 5: Solve for x
    x = 15,517,613,788.82/131,420.86
  6. Step 6: Final answer
    x = 118,075.73

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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.