Home / 486,062.28-729,091.32-131,112.16

Finding the Fourth Proportional to 486,062.28, 729,091.32 and 131,112.16

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Solution

The fourth proportional to 486,062.28, 729,091.32 and 131,112.16 is: 196,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,062.28 : 729,091.32 = 131,112.16 : x
  2. Step 2: Convert to fraction form
    486,062.28/729,091.32 = 131,112.16/x
  3. Step 3: Cross multiply
    486,062.28x = 729,091.32 × 131,112.16
  4. Step 4: Simplify right side
    486,062.28x = 95,592,737,802.45
  5. Step 5: Solve for x
    x = 95,592,737,802.45/486,062.28
  6. Step 6: Final answer
    x = 196,667.67

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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.