Home / 131,523.13-181,459.10-80,482.60

Finding the Fourth Proportional to 131,523.13, 181,459.10 and 80,482.60

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Solution

The fourth proportional to 131,523.13, 181,459.10 and 80,482.60 is: 111,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,523.13 : 181,459.10 = 80,482.60 : x
  2. Step 2: Convert to fraction form
    131,523.13/181,459.10 = 80,482.60/x
  3. Step 3: Cross multiply
    131,523.13x = 181,459.10 × 80,482.60
  4. Step 4: Simplify right side
    131,523.13x = 14,604,300,161.66
  5. Step 5: Solve for x
    x = 14,604,300,161.66/131,523.13
  6. Step 6: Final answer
    x = 111,039.79

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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.