Home / 104,965.24-157,217.07-86,747

Finding the Fourth Proportional to 104,965.24, 157,217.07 and 86,747

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Solution

The fourth proportional to 104,965.24, 157,217.07 and 86,747 is: 129,929.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,965.24 : 157,217.07 = 86,747 : x
  2. Step 2: Convert to fraction form
    104,965.24/157,217.07 = 86,747/x
  3. Step 3: Cross multiply
    104,965.24x = 157,217.07 × 86,747
  4. Step 4: Simplify right side
    104,965.24x = 13,638,109,171.29
  5. Step 5: Solve for x
    x = 13,638,109,171.29/104,965.24
  6. Step 6: Final answer
    x = 129,929.77

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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.