Home / 105,747.23-145,940.54-58,009.88

Finding the Fourth Proportional to 105,747.23, 145,940.54 and 58,009.88

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Solution

The fourth proportional to 105,747.23, 145,940.54 and 58,009.88 is: 80,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,747.23 : 145,940.54 = 58,009.88 : x
  2. Step 2: Convert to fraction form
    105,747.23/145,940.54 = 58,009.88/x
  3. Step 3: Cross multiply
    105,747.23x = 145,940.54 × 58,009.88
  4. Step 4: Simplify right side
    105,747.23x = 8,465,992,192.78
  5. Step 5: Solve for x
    x = 8,465,992,192.78/105,747.23
  6. Step 6: Final answer
    x = 80,058.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.