Home / 103,321.36-154,628.15-71,767.00

Finding the Fourth Proportional to 103,321.36, 154,628.15 and 71,767.00

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Solution

The fourth proportional to 103,321.36, 154,628.15 and 71,767.00 is: 107,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,321.36 : 154,628.15 = 71,767.00 : x
  2. Step 2: Convert to fraction form
    103,321.36/154,628.15 = 71,767.00/x
  3. Step 3: Cross multiply
    103,321.36x = 154,628.15 × 71,767.00
  4. Step 4: Simplify right side
    103,321.36x = 11,097,197,309.07
  5. Step 5: Solve for x
    x = 11,097,197,309.07/103,321.36
  6. Step 6: Final answer
    x = 107,404.68

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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.