Home / 144,021.03-198,760.23-80,368.38

Finding the Fourth Proportional to 144,021.03, 198,760.23 and 80,368.38

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Solution

The fourth proportional to 144,021.03, 198,760.23 and 80,368.38 is: 110,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,021.03 : 198,760.23 = 80,368.38 : x
  2. Step 2: Convert to fraction form
    144,021.03/198,760.23 = 80,368.38/x
  3. Step 3: Cross multiply
    144,021.03x = 198,760.23 × 80,368.38
  4. Step 4: Simplify right side
    144,021.03x = 15,974,037,693.53
  5. Step 5: Solve for x
    x = 15,974,037,693.53/144,021.03
  6. Step 6: Final answer
    x = 110,914.62

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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.