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Finding the Fourth Proportional to 103,167.78, 141,444.35 and 101,301.54

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Solution

The fourth proportional to 103,167.78, 141,444.35 and 101,301.54 is: 138,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,167.78 : 141,444.35 = 101,301.54 : x
  2. Step 2: Convert to fraction form
    103,167.78/141,444.35 = 101,301.54/x
  3. Step 3: Cross multiply
    103,167.78x = 141,444.35 × 101,301.54
  4. Step 4: Simplify right side
    103,167.78x = 14,328,529,972.79
  5. Step 5: Solve for x
    x = 14,328,529,972.79/103,167.78
  6. Step 6: Final answer
    x = 138,885.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.