Home / 196,831.28-295,065.24-78,474

Finding the Fourth Proportional to 196,831.28, 295,065.24 and 78,474

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Solution

The fourth proportional to 196,831.28, 295,065.24 and 78,474 is: 117,638.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,831.28 : 295,065.24 = 78,474 : x
  2. Step 2: Convert to fraction form
    196,831.28/295,065.24 = 78,474/x
  3. Step 3: Cross multiply
    196,831.28x = 295,065.24 × 78,474
  4. Step 4: Simplify right side
    196,831.28x = 23,154,949,643.76
  5. Step 5: Solve for x
    x = 23,154,949,643.76/196,831.28
  6. Step 6: Final answer
    x = 117,638.57

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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.