Home / 144,431.36-216,753.44-68,530.16

Finding the Fourth Proportional to 144,431.36, 216,753.44 and 68,530.16

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Solution

The fourth proportional to 144,431.36, 216,753.44 and 68,530.16 is: 102,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,431.36 : 216,753.44 = 68,530.16 : x
  2. Step 2: Convert to fraction form
    144,431.36/216,753.44 = 68,530.16/x
  3. Step 3: Cross multiply
    144,431.36x = 216,753.44 × 68,530.16
  4. Step 4: Simplify right side
    144,431.36x = 14,854,147,923.75
  5. Step 5: Solve for x
    x = 14,854,147,923.75/144,431.36
  6. Step 6: Final answer
    x = 102,845.72

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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.