Home / 185,394.68-278,113.62-67,121.72

Finding the Fourth Proportional to 185,394.68, 278,113.62 and 67,121.72

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Solution

The fourth proportional to 185,394.68, 278,113.62 and 67,121.72 is: 100,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,394.68 : 278,113.62 = 67,121.72 : x
  2. Step 2: Convert to fraction form
    185,394.68/278,113.62 = 67,121.72/x
  3. Step 3: Cross multiply
    185,394.68x = 278,113.62 × 67,121.72
  4. Step 4: Simplify right side
    185,394.68x = 18,667,464,529.83
  5. Step 5: Solve for x
    x = 18,667,464,529.83/185,394.68
  6. Step 6: Final answer
    x = 100,690.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.