Home / 103,965.31-155,920.29-29,080.81

Finding the Fourth Proportional to 103,965.31, 155,920.29 and 29,080.81

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Solution

The fourth proportional to 103,965.31, 155,920.29 and 29,080.81 is: 43,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,965.31 : 155,920.29 = 29,080.81 : x
  2. Step 2: Convert to fraction form
    103,965.31/155,920.29 = 29,080.81/x
  3. Step 3: Cross multiply
    103,965.31x = 155,920.29 × 29,080.81
  4. Step 4: Simplify right side
    103,965.31x = 4,534,288,328.63
  5. Step 5: Solve for x
    x = 4,534,288,328.63/103,965.31
  6. Step 6: Final answer
    x = 43,613.47

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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.