Home / 100,831.50-151,274.66-30,710.88

Finding the Fourth Proportional to 100,831.50, 151,274.66 and 30,710.88

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Solution

The fourth proportional to 100,831.50, 151,274.66 and 30,710.88 is: 46,074.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,831.50 : 151,274.66 = 30,710.88 : x
  2. Step 2: Convert to fraction form
    100,831.50/151,274.66 = 30,710.88/x
  3. Step 3: Cross multiply
    100,831.50x = 151,274.66 × 30,710.88
  4. Step 4: Simplify right side
    100,831.50x = 4,645,777,776.75
  5. Step 5: Solve for x
    x = 4,645,777,776.75/100,831.50
  6. Step 6: Final answer
    x = 46,074.67

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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.