Home / 135,440.16-203,291.52-65,368.80

Finding the Fourth Proportional to 135,440.16, 203,291.52 and 65,368.80

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Solution

The fourth proportional to 135,440.16, 203,291.52 and 65,368.80 is: 98,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,440.16 : 203,291.52 = 65,368.80 : x
  2. Step 2: Convert to fraction form
    135,440.16/203,291.52 = 65,368.80/x
  3. Step 3: Cross multiply
    135,440.16x = 203,291.52 × 65,368.80
  4. Step 4: Simplify right side
    135,440.16x = 13,288,922,712.58
  5. Step 5: Solve for x
    x = 13,288,922,712.58/135,440.16
  6. Step 6: Final answer
    x = 98,116.56

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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.