Home / 135,039.48-186,350.58-74,608.92

Finding the Fourth Proportional to 135,039.48, 186,350.58 and 74,608.92

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Solution

The fourth proportional to 135,039.48, 186,350.58 and 74,608.92 is: 102,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,039.48 : 186,350.58 = 74,608.92 : x
  2. Step 2: Convert to fraction form
    135,039.48/186,350.58 = 74,608.92/x
  3. Step 3: Cross multiply
    135,039.48x = 186,350.58 × 74,608.92
  4. Step 4: Simplify right side
    135,039.48x = 13,903,415,515.17
  5. Step 5: Solve for x
    x = 13,903,415,515.17/135,039.48
  6. Step 6: Final answer
    x = 102,958.15

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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.