Home / 131,578.48-197,417.28-79,024.60

Finding the Fourth Proportional to 131,578.48, 197,417.28 and 79,024.60

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Solution

The fourth proportional to 131,578.48, 197,417.28 and 79,024.60 is: 118,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578.48 : 197,417.28 = 79,024.60 : x
  2. Step 2: Convert to fraction form
    131,578.48/197,417.28 = 79,024.60/x
  3. Step 3: Cross multiply
    131,578.48x = 197,417.28 × 79,024.60
  4. Step 4: Simplify right side
    131,578.48x = 15,600,821,585.09
  5. Step 5: Solve for x
    x = 15,600,821,585.09/131,578.48
  6. Step 6: Final answer
    x = 118,566.67

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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.