Home / 209,932.08-315,020.07-88,343.67

Finding the Fourth Proportional to 209,932.08, 315,020.07 and 88,343.67

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Solution

The fourth proportional to 209,932.08, 315,020.07 and 88,343.67 is: 132,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,932.08 : 315,020.07 = 88,343.67 : x
  2. Step 2: Convert to fraction form
    209,932.08/315,020.07 = 88,343.67/x
  3. Step 3: Cross multiply
    209,932.08x = 315,020.07 × 88,343.67
  4. Step 4: Simplify right side
    209,932.08x = 27,830,029,107.46
  5. Step 5: Solve for x
    x = 27,830,029,107.46/209,932.08
  6. Step 6: Final answer
    x = 132,566.82

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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.