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Finding the Fourth Proportional to 143,830.58, 215,461.08 and 67,825.04

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Solution

The fourth proportional to 143,830.58, 215,461.08 and 67,825.04 is: 101,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,830.58 : 215,461.08 = 67,825.04 : x
  2. Step 2: Convert to fraction form
    143,830.58/215,461.08 = 67,825.04/x
  3. Step 3: Cross multiply
    143,830.58x = 215,461.08 × 67,825.04
  4. Step 4: Simplify right side
    143,830.58x = 14,613,656,369.44
  5. Step 5: Solve for x
    x = 14,613,656,369.44/143,830.58
  6. Step 6: Final answer
    x = 101,603.26

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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.