Home / 215,836.14-298,041.92-135,401.93

Finding the Fourth Proportional to 215,836.14, 298,041.92 and 135,401.93

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Solution

The fourth proportional to 215,836.14, 298,041.92 and 135,401.93 is: 186,972.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,836.14 : 298,041.92 = 135,401.93 : x
  2. Step 2: Convert to fraction form
    215,836.14/298,041.92 = 135,401.93/x
  3. Step 3: Cross multiply
    215,836.14x = 298,041.92 × 135,401.93
  4. Step 4: Simplify right side
    215,836.14x = 40,355,449,021.69
  5. Step 5: Solve for x
    x = 40,355,449,021.69/215,836.14
  6. Step 6: Final answer
    x = 186,972.62

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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.