Home / 370,580.07-555,868.49-90,099.75

Finding the Fourth Proportional to 370,580.07, 555,868.49 and 90,099.75

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Solution

The fourth proportional to 370,580.07, 555,868.49 and 90,099.75 is: 135,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,580.07 : 555,868.49 = 90,099.75 : x
  2. Step 2: Convert to fraction form
    370,580.07/555,868.49 = 90,099.75/x
  3. Step 3: Cross multiply
    370,580.07x = 555,868.49 × 90,099.75
  4. Step 4: Simplify right side
    370,580.07x = 50,083,611,531.38
  5. Step 5: Solve for x
    x = 50,083,611,531.38/370,580.07
  6. Step 6: Final answer
    x = 135,149.23

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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.