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Finding the Fourth Proportional to 146,376, 201,999.02 and 79,308

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Solution

The fourth proportional to 146,376, 201,999.02 and 79,308 is: 109,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,376 : 201,999.02 = 79,308 : x
  2. Step 2: Convert to fraction form
    146,376/201,999.02 = 79,308/x
  3. Step 3: Cross multiply
    146,376x = 201,999.02 × 79,308
  4. Step 4: Simplify right side
    146,376x = 16,020,137,881.62
  5. Step 5: Solve for x
    x = 16,020,137,881.62/146,376
  6. Step 6: Final answer
    x = 109,445.11

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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.