Home / 105,129.20-145,092.19-59,798.43

Finding the Fourth Proportional to 105,129.20, 145,092.19 and 59,798.43

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Solution

The fourth proportional to 105,129.20, 145,092.19 and 59,798.43 is: 82,529.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,129.20 : 145,092.19 = 59,798.43 : x
  2. Step 2: Convert to fraction form
    105,129.20/145,092.19 = 59,798.43/x
  3. Step 3: Cross multiply
    105,129.20x = 145,092.19 × 59,798.43
  4. Step 4: Simplify right side
    105,129.20x = 8,676,285,167.26
  5. Step 5: Solve for x
    x = 8,676,285,167.26/105,129.20
  6. Step 6: Final answer
    x = 82,529.74

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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.