Home / 112,774.75-169,109.15-65,403.30

Finding the Fourth Proportional to 112,774.75, 169,109.15 and 65,403.30

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Solution

The fourth proportional to 112,774.75, 169,109.15 and 65,403.30 is: 98,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.75 : 169,109.15 = 65,403.30 : x
  2. Step 2: Convert to fraction form
    112,774.75/169,109.15 = 65,403.30/x
  3. Step 3: Cross multiply
    112,774.75x = 169,109.15 × 65,403.30
  4. Step 4: Simplify right side
    112,774.75x = 11,060,296,143.18
  5. Step 5: Solve for x
    x = 11,060,296,143.18/112,774.75
  6. Step 6: Final answer
    x = 98,074.23

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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.