Home / 205,719.67-308,499.73-70,758.07

Finding the Fourth Proportional to 205,719.67, 308,499.73 and 70,758.07

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Solution

The fourth proportional to 205,719.67, 308,499.73 and 70,758.07 is: 106,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,719.67 : 308,499.73 = 70,758.07 : x
  2. Step 2: Convert to fraction form
    205,719.67/308,499.73 = 70,758.07/x
  3. Step 3: Cross multiply
    205,719.67x = 308,499.73 × 70,758.07
  4. Step 4: Simplify right side
    205,719.67x = 21,828,846,476.49
  5. Step 5: Solve for x
    x = 21,828,846,476.49/205,719.67
  6. Step 6: Final answer
    x = 106,109.67

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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.