Home / 105,712.26-145,877.64-59,770.68

Finding the Fourth Proportional to 105,712.26, 145,877.64 and 59,770.68

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Solution

The fourth proportional to 105,712.26, 145,877.64 and 59,770.68 is: 82,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,712.26 : 145,877.64 = 59,770.68 : x
  2. Step 2: Convert to fraction form
    105,712.26/145,877.64 = 59,770.68/x
  3. Step 3: Cross multiply
    105,712.26x = 145,877.64 × 59,770.68
  4. Step 4: Simplify right side
    105,712.26x = 8,719,205,739.60
  5. Step 5: Solve for x
    x = 8,719,205,739.60/105,712.26
  6. Step 6: Final answer
    x = 82,480.55

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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.