Home / 370,581.07-555,869.98-90,100.75

Finding the Fourth Proportional to 370,581.07, 555,869.98 and 90,100.75

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Solution

The fourth proportional to 370,581.07, 555,869.98 and 90,100.75 is: 135,150.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,581.07 : 555,869.98 = 90,100.75 : x
  2. Step 2: Convert to fraction form
    370,581.07/555,869.98 = 90,100.75/x
  3. Step 3: Cross multiply
    370,581.07x = 555,869.98 × 90,100.75
  4. Step 4: Simplify right side
    370,581.07x = 50,084,302,100.49
  5. Step 5: Solve for x
    x = 50,084,302,100.49/370,581.07
  6. Step 6: Final answer
    x = 135,150.73

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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.