Home / 107,781.37-148,738.32-62,485.61

Finding the Fourth Proportional to 107,781.37, 148,738.32 and 62,485.61

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Solution

The fourth proportional to 107,781.37, 148,738.32 and 62,485.61 is: 86,230.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,781.37 : 148,738.32 = 62,485.61 : x
  2. Step 2: Convert to fraction form
    107,781.37/148,738.32 = 62,485.61/x
  3. Step 3: Cross multiply
    107,781.37x = 148,738.32 × 62,485.61
  4. Step 4: Simplify right side
    107,781.37x = 9,294,004,655.58
  5. Step 5: Solve for x
    x = 9,294,004,655.58/107,781.37
  6. Step 6: Final answer
    x = 86,230.16

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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.