Home / 153,634.43-230,285.09-78,651.72

Finding the Fourth Proportional to 153,634.43, 230,285.09 and 78,651.72

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Solution

The fourth proportional to 153,634.43, 230,285.09 and 78,651.72 is: 117,892.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,634.43 : 230,285.09 = 78,651.72 : x
  2. Step 2: Convert to fraction form
    153,634.43/230,285.09 = 78,651.72/x
  3. Step 3: Cross multiply
    153,634.43x = 230,285.09 × 78,651.72
  4. Step 4: Simplify right side
    153,634.43x = 18,112,318,615.48
  5. Step 5: Solve for x
    x = 18,112,318,615.48/153,634.43
  6. Step 6: Final answer
    x = 117,892.31

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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.