Home / 219,476.75-302,902.50-123,989.60

Finding the Fourth Proportional to 219,476.75, 302,902.50 and 123,989.60

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Solution

The fourth proportional to 219,476.75, 302,902.50 and 123,989.60 is: 171,119.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,476.75 : 302,902.50 = 123,989.60 : x
  2. Step 2: Convert to fraction form
    219,476.75/302,902.50 = 123,989.60/x
  3. Step 3: Cross multiply
    219,476.75x = 302,902.50 × 123,989.60
  4. Step 4: Simplify right side
    219,476.75x = 37,556,758,299.49
  5. Step 5: Solve for x
    x = 37,556,758,299.49/219,476.75
  6. Step 6: Final answer
    x = 171,119.53

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1.5x scale

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.