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Finding the Fourth Proportional to 119,339.36, 178,897.56 and 40,398.56

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Solution

The fourth proportional to 119,339.36, 178,897.56 and 40,398.56 is: 60,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,339.36 : 178,897.56 = 40,398.56 : x
  2. Step 2: Convert to fraction form
    119,339.36/178,897.56 = 40,398.56/x
  3. Step 3: Cross multiply
    119,339.36x = 178,897.56 × 40,398.56
  4. Step 4: Simplify right side
    119,339.36x = 7,227,203,811.51
  5. Step 5: Solve for x
    x = 7,227,203,811.51/119,339.36
  6. Step 6: Final answer
    x = 60,560.10

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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.