Home / 354,422.20-531,735.70-105,110.20

Finding the Fourth Proportional to 354,422.20, 531,735.70 and 105,110.20

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Solution

The fourth proportional to 354,422.20, 531,735.70 and 105,110.20 is: 157,695.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,422.20 : 531,735.70 = 105,110.20 : x
  2. Step 2: Convert to fraction form
    354,422.20/531,735.70 = 105,110.20/x
  3. Step 3: Cross multiply
    354,422.20x = 531,735.70 × 105,110.20
  4. Step 4: Simplify right side
    354,422.20x = 55,890,845,774.14
  5. Step 5: Solve for x
    x = 55,890,845,774.14/354,422.20
  6. Step 6: Final answer
    x = 157,695.67

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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.