Home / 153,234.62-211,329.18-107,270.72

Finding the Fourth Proportional to 153,234.62, 211,329.18 and 107,270.72

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Solution

The fourth proportional to 153,234.62, 211,329.18 and 107,270.72 is: 147,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,234.62 : 211,329.18 = 107,270.72 : x
  2. Step 2: Convert to fraction form
    153,234.62/211,329.18 = 107,270.72/x
  3. Step 3: Cross multiply
    153,234.62x = 211,329.18 × 107,270.72
  4. Step 4: Simplify right side
    153,234.62x = 22,669,433,295.61
  5. Step 5: Solve for x
    x = 22,669,433,295.61/153,234.62
  6. Step 6: Final answer
    x = 147,939.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.