Home / 201,428.12-302,142.27-51,668.41

Finding the Fourth Proportional to 201,428.12, 302,142.27 and 51,668.41

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Solution

The fourth proportional to 201,428.12, 302,142.27 and 51,668.41 is: 77,502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,428.12 : 302,142.27 = 51,668.41 : x
  2. Step 2: Convert to fraction form
    201,428.12/302,142.27 = 51,668.41/x
  3. Step 3: Cross multiply
    201,428.12x = 302,142.27 × 51,668.41
  4. Step 4: Simplify right side
    201,428.12x = 15,611,210,684.69
  5. Step 5: Solve for x
    x = 15,611,210,684.69/201,428.12
  6. Step 6: Final answer
    x = 77,502.64

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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.