Home / 131,254.14-196,884-47,019.78

Finding the Fourth Proportional to 131,254.14, 196,884 and 47,019.78

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Solution

The fourth proportional to 131,254.14, 196,884 and 47,019.78 is: 70,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,254.14 : 196,884 = 47,019.78 : x
  2. Step 2: Convert to fraction form
    131,254.14/196,884 = 47,019.78/x
  3. Step 3: Cross multiply
    131,254.14x = 196,884 × 47,019.78
  4. Step 4: Simplify right side
    131,254.14x = 9,257,442,365.52
  5. Step 5: Solve for x
    x = 9,257,442,365.52/131,254.14
  6. Step 6: Final answer
    x = 70,530.67

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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.