Home / 209,158.32-313,561.24-90,740.56

Finding the Fourth Proportional to 209,158.32, 313,561.24 and 90,740.56

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Solution

The fourth proportional to 209,158.32, 313,561.24 and 90,740.56 is: 136,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,158.32 : 313,561.24 = 90,740.56 : x
  2. Step 2: Convert to fraction form
    209,158.32/313,561.24 = 90,740.56/x
  3. Step 3: Cross multiply
    209,158.32x = 313,561.24 × 90,740.56
  4. Step 4: Simplify right side
    209,158.32x = 28,452,722,511.89
  5. Step 5: Solve for x
    x = 28,452,722,511.89/209,158.32
  6. Step 6: Final answer
    x = 136,034.38

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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.