Home / 112,777.33-169,113.03-65,405.90

Finding the Fourth Proportional to 112,777.33, 169,113.03 and 65,405.90

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Solution

The fourth proportional to 112,777.33, 169,113.03 and 65,405.90 is: 98,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,777.33 : 169,113.03 = 65,405.90 : x
  2. Step 2: Convert to fraction form
    112,777.33/169,113.03 = 65,405.90/x
  3. Step 3: Cross multiply
    112,777.33x = 169,113.03 × 65,405.90
  4. Step 4: Simplify right side
    112,777.33x = 11,060,989,928.88
  5. Step 5: Solve for x
    x = 11,060,989,928.88/112,777.33
  6. Step 6: Final answer
    x = 98,078.13

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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.