Home / 105,391.41-158,095.35-30,512.67

Finding the Fourth Proportional to 105,391.41, 158,095.35 and 30,512.67

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Solution

The fourth proportional to 105,391.41, 158,095.35 and 30,512.67 is: 45,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391.41 : 158,095.35 = 30,512.67 : x
  2. Step 2: Convert to fraction form
    105,391.41/158,095.35 = 30,512.67/x
  3. Step 3: Cross multiply
    105,391.41x = 158,095.35 × 30,512.67
  4. Step 4: Simplify right side
    105,391.41x = 4,823,910,300.04
  5. Step 5: Solve for x
    x = 4,823,910,300.04/105,391.41
  6. Step 6: Final answer
    x = 45,771.38

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1.5x scale

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.