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Finding the Fourth Proportional to 159,341.40, 239,022.90 and 54,168.30

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Solution

The fourth proportional to 159,341.40, 239,022.90 and 54,168.30 is: 81,256.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,341.40 : 239,022.90 = 54,168.30 : x
  2. Step 2: Convert to fraction form
    159,341.40/239,022.90 = 54,168.30/x
  3. Step 3: Cross multiply
    159,341.40x = 239,022.90 × 54,168.30
  4. Step 4: Simplify right side
    159,341.40x = 12,947,464,154.07
  5. Step 5: Solve for x
    x = 12,947,464,154.07/159,341.40
  6. Step 6: Final answer
    x = 81,256.12

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