Home / 115,625.21-159,563.88-67,879.35

Finding the Fourth Proportional to 115,625.21, 159,563.88 and 67,879.35

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Solution

The fourth proportional to 115,625.21, 159,563.88 and 67,879.35 is: 93,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,625.21 : 159,563.88 = 67,879.35 : x
  2. Step 2: Convert to fraction form
    115,625.21/159,563.88 = 67,879.35/x
  3. Step 3: Cross multiply
    115,625.21x = 159,563.88 × 67,879.35
  4. Step 4: Simplify right side
    115,625.21x = 10,831,092,457.88
  5. Step 5: Solve for x
    x = 10,831,092,457.88/115,625.21
  6. Step 6: Final answer
    x = 93,674.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.