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Finding the Fourth Proportional to 142,992.86, 214,490.81 and 43,153.94

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Solution

The fourth proportional to 142,992.86, 214,490.81 and 43,153.94 is: 64,731.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992.86 : 214,490.81 = 43,153.94 : x
  2. Step 2: Convert to fraction form
    142,992.86/214,490.81 = 43,153.94/x
  3. Step 3: Cross multiply
    142,992.86x = 214,490.81 × 43,153.94
  4. Step 4: Simplify right side
    142,992.86x = 9,256,124,189.40
  5. Step 5: Solve for x
    x = 9,256,124,189.40/142,992.86
  6. Step 6: Final answer
    x = 64,731.38

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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.