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Finding the Fourth Proportional to 131,523.63, 181,459.79 and 80,483.10

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Solution

The fourth proportional to 131,523.63, 181,459.79 and 80,483.10 is: 111,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,523.63 : 181,459.79 = 80,483.10 : x
  2. Step 2: Convert to fraction form
    131,523.63/181,459.79 = 80,483.10/x
  3. Step 3: Cross multiply
    131,523.63x = 181,459.79 × 80,483.10
  4. Step 4: Simplify right side
    131,523.63x = 14,604,446,022.13
  5. Step 5: Solve for x
    x = 14,604,446,022.13/131,523.63
  6. Step 6: Final answer
    x = 111,040.47

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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.