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Finding the Fourth Proportional to 146,139, 201,671.82 and 79,071

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Solution

The fourth proportional to 146,139, 201,671.82 and 79,071 is: 109,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,139 : 201,671.82 = 79,071 : x
  2. Step 2: Convert to fraction form
    146,139/201,671.82 = 79,071/x
  3. Step 3: Cross multiply
    146,139x = 201,671.82 × 79,071
  4. Step 4: Simplify right side
    146,139x = 15,946,392,479.22
  5. Step 5: Solve for x
    x = 15,946,392,479.22/146,139
  6. Step 6: Final answer
    x = 109,117.98

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