Home / 102,074.71-153,143.22-52,189.85

Finding the Fourth Proportional to 102,074.71, 153,143.22 and 52,189.85

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Solution

The fourth proportional to 102,074.71, 153,143.22 and 52,189.85 is: 78,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,074.71 : 153,143.22 = 52,189.85 : x
  2. Step 2: Convert to fraction form
    102,074.71/153,143.22 = 52,189.85/x
  3. Step 3: Cross multiply
    102,074.71x = 153,143.22 × 52,189.85
  4. Step 4: Simplify right side
    102,074.71x = 7,992,520,653.65
  5. Step 5: Solve for x
    x = 7,992,520,653.65/102,074.71
  6. Step 6: Final answer
    x = 78,300.69

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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.