Home / 105,076.80-145,000.26-59,748.66

Finding the Fourth Proportional to 105,076.80, 145,000.26 and 59,748.66

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Solution

The fourth proportional to 105,076.80, 145,000.26 and 59,748.66 is: 82,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,076.80 : 145,000.26 = 59,748.66 : x
  2. Step 2: Convert to fraction form
    105,076.80/145,000.26 = 59,748.66/x
  3. Step 3: Cross multiply
    105,076.80x = 145,000.26 × 59,748.66
  4. Step 4: Simplify right side
    105,076.80x = 8,663,571,234.65
  5. Step 5: Solve for x
    x = 8,663,571,234.65/105,076.80
  6. Step 6: Final answer
    x = 82,449.90

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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.