Home / 121,349.16-182,081.43-54,809.64

Finding the Fourth Proportional to 121,349.16, 182,081.43 and 54,809.64

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Solution

The fourth proportional to 121,349.16, 182,081.43 and 54,809.64 is: 82,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,349.16 : 182,081.43 = 54,809.64 : x
  2. Step 2: Convert to fraction form
    121,349.16/182,081.43 = 54,809.64/x
  3. Step 3: Cross multiply
    121,349.16x = 182,081.43 × 54,809.64
  4. Step 4: Simplify right side
    121,349.16x = 9,979,817,628.99
  5. Step 5: Solve for x
    x = 9,979,817,628.99/121,349.16
  6. Step 6: Final answer
    x = 82,240.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.