Home / 102,771.91-154,172.10-31,700.14

Finding the Fourth Proportional to 102,771.91, 154,172.10 and 31,700.14

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Solution

The fourth proportional to 102,771.91, 154,172.10 and 31,700.14 is: 47,554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,771.91 : 154,172.10 = 31,700.14 : x
  2. Step 2: Convert to fraction form
    102,771.91/154,172.10 = 31,700.14/x
  3. Step 3: Cross multiply
    102,771.91x = 154,172.10 × 31,700.14
  4. Step 4: Simplify right side
    102,771.91x = 4,887,276,668.70
  5. Step 5: Solve for x
    x = 4,887,276,668.70/102,771.91
  6. Step 6: Final answer
    x = 47,554.59

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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.