Home / 104,967.24-157,220.07-86,749

Finding the Fourth Proportional to 104,967.24, 157,220.07 and 86,749

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Solution

The fourth proportional to 104,967.24, 157,220.07 and 86,749 is: 129,932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,967.24 : 157,220.07 = 86,749 : x
  2. Step 2: Convert to fraction form
    104,967.24/157,220.07 = 86,749/x
  3. Step 3: Cross multiply
    104,967.24x = 157,220.07 × 86,749
  4. Step 4: Simplify right side
    104,967.24x = 13,638,683,852.43
  5. Step 5: Solve for x
    x = 13,638,683,852.43/104,967.24
  6. Step 6: Final answer
    x = 129,932.77

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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.