Home / 105,340.74-145,367.43-62,322.45

Finding the Fourth Proportional to 105,340.74, 145,367.43 and 62,322.45

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Solution

The fourth proportional to 105,340.74, 145,367.43 and 62,322.45 is: 86,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,340.74 : 145,367.43 = 62,322.45 : x
  2. Step 2: Convert to fraction form
    105,340.74/145,367.43 = 62,322.45/x
  3. Step 3: Cross multiply
    105,340.74x = 145,367.43 × 62,322.45
  4. Step 4: Simplify right side
    105,340.74x = 9,059,654,387.80
  5. Step 5: Solve for x
    x = 9,059,654,387.80/105,340.74
  6. Step 6: Final answer
    x = 86,003.33

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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.