Home / 143,549.36-215,105.80-68,566.25

Finding the Fourth Proportional to 143,549.36, 215,105.80 and 68,566.25

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Solution

The fourth proportional to 143,549.36, 215,105.80 and 68,566.25 is: 102,745.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,549.36 : 215,105.80 = 68,566.25 : x
  2. Step 2: Convert to fraction form
    143,549.36/215,105.80 = 68,566.25/x
  3. Step 3: Cross multiply
    143,549.36x = 215,105.80 × 68,566.25
  4. Step 4: Simplify right side
    143,549.36x = 14,748,997,537.03
  5. Step 5: Solve for x
    x = 14,748,997,537.03/143,549.36
  6. Step 6: Final answer
    x = 102,745.13

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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.