Home / 239,720.50-359,619.76-89,972.56

Finding the Fourth Proportional to 239,720.50, 359,619.76 and 89,972.56

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Solution

The fourth proportional to 239,720.50, 359,619.76 and 89,972.56 is: 134,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,720.50 : 359,619.76 = 89,972.56 : x
  2. Step 2: Convert to fraction form
    239,720.50/359,619.76 = 89,972.56/x
  3. Step 3: Cross multiply
    239,720.50x = 359,619.76 × 89,972.56
  4. Step 4: Simplify right side
    239,720.50x = 32,355,909,647.20
  5. Step 5: Solve for x
    x = 32,355,909,647.20/239,720.50
  6. Step 6: Final answer
    x = 134,973.48

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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.