Home / 105,321.36-145,344.45-59,998.68

Finding the Fourth Proportional to 105,321.36, 145,344.45 and 59,998.68

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Solution

The fourth proportional to 105,321.36, 145,344.45 and 59,998.68 is: 82,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,321.36 : 145,344.45 = 59,998.68 : x
  2. Step 2: Convert to fraction form
    105,321.36/145,344.45 = 59,998.68/x
  3. Step 3: Cross multiply
    105,321.36x = 145,344.45 × 59,998.68
  4. Step 4: Simplify right side
    105,321.36x = 8,720,475,145.33
  5. Step 5: Solve for x
    x = 8,720,475,145.33/105,321.36
  6. Step 6: Final answer
    x = 82,798.73

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1.5x scale

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.