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Finding the Fourth Proportional to 171,814, 237,207 and 112,301.68

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Solution

The fourth proportional to 171,814, 237,207 and 112,301.68 is: 155,044.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,814 : 237,207 = 112,301.68 : x
  2. Step 2: Convert to fraction form
    171,814/237,207 = 112,301.68/x
  3. Step 3: Cross multiply
    171,814x = 237,207 × 112,301.68
  4. Step 4: Simplify right side
    171,814x = 26,638,744,607.76
  5. Step 5: Solve for x
    x = 26,638,744,607.76/171,814
  6. Step 6: Final answer
    x = 155,044.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.