Home / 135,323.42-186,744.94-74,894.18

Finding the Fourth Proportional to 135,323.42, 186,744.94 and 74,894.18

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Solution

The fourth proportional to 135,323.42, 186,744.94 and 74,894.18 is: 103,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,323.42 : 186,744.94 = 74,894.18 : x
  2. Step 2: Convert to fraction form
    135,323.42/186,744.94 = 74,894.18/x
  3. Step 3: Cross multiply
    135,323.42x = 186,744.94 × 74,894.18
  4. Step 4: Simplify right side
    135,323.42x = 13,986,108,029.49
  5. Step 5: Solve for x
    x = 13,986,108,029.49/135,323.42
  6. Step 6: Final answer
    x = 103,353.20

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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.