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Finding the Fourth Proportional to 119,356.05, 178,995.73 and 39,376.05

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Solution

The fourth proportional to 119,356.05, 178,995.73 and 39,376.05 is: 59,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,356.05 : 178,995.73 = 39,376.05 : x
  2. Step 2: Convert to fraction form
    119,356.05/178,995.73 = 39,376.05/x
  3. Step 3: Cross multiply
    119,356.05x = 178,995.73 × 39,376.05
  4. Step 4: Simplify right side
    119,356.05x = 7,048,144,814.27
  5. Step 5: Solve for x
    x = 7,048,144,814.27/119,356.05
  6. Step 6: Final answer
    x = 59,051.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.