Home / 209,284.65-313,919.94-90,956.01

Finding the Fourth Proportional to 209,284.65, 313,919.94 and 90,956.01

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Solution

The fourth proportional to 209,284.65, 313,919.94 and 90,956.01 is: 136,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,284.65 : 313,919.94 = 90,956.01 : x
  2. Step 2: Convert to fraction form
    209,284.65/313,919.94 = 90,956.01/x
  3. Step 3: Cross multiply
    209,284.65x = 313,919.94 × 90,956.01
  4. Step 4: Simplify right side
    209,284.65x = 28,552,905,201.84
  5. Step 5: Solve for x
    x = 28,552,905,201.84/209,284.65
  6. Step 6: Final answer
    x = 136,430.96

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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.