Home / 293,080.40-439,703.04-82,720.16

Finding the Fourth Proportional to 293,080.40, 439,703.04 and 82,720.16

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Solution

The fourth proportional to 293,080.40, 439,703.04 and 82,720.16 is: 124,103.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,080.40 : 439,703.04 = 82,720.16 : x
  2. Step 2: Convert to fraction form
    293,080.40/439,703.04 = 82,720.16/x
  3. Step 3: Cross multiply
    293,080.40x = 439,703.04 × 82,720.16
  4. Step 4: Simplify right side
    293,080.40x = 36,372,305,821.29
  5. Step 5: Solve for x
    x = 36,372,305,821.29/293,080.40
  6. Step 6: Final answer
    x = 124,103.51

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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.