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Finding the Fourth Proportional to 146,376.08, 201,999.12 and 79,308.08

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Solution

The fourth proportional to 146,376.08, 201,999.12 and 79,308.08 is: 109,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,376.08 : 201,999.12 = 79,308.08 : x
  2. Step 2: Convert to fraction form
    146,376.08/201,999.12 = 79,308.08/x
  3. Step 3: Cross multiply
    146,376.08x = 201,999.12 × 79,308.08
  4. Step 4: Simplify right side
    146,376.08x = 16,020,162,368.89
  5. Step 5: Solve for x
    x = 16,020,162,368.89/146,376.08
  6. Step 6: Final answer
    x = 109,445.22

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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.