Home / 159,105.06-219,361.16-130,318.67

Finding the Fourth Proportional to 159,105.06, 219,361.16 and 130,318.67

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Solution

The fourth proportional to 159,105.06, 219,361.16 and 130,318.67 is: 179,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,105.06 : 219,361.16 = 130,318.67 : x
  2. Step 2: Convert to fraction form
    159,105.06/219,361.16 = 130,318.67/x
  3. Step 3: Cross multiply
    159,105.06x = 219,361.16 × 130,318.67
  4. Step 4: Simplify right side
    159,105.06x = 28,586,855,495.06
  5. Step 5: Solve for x
    x = 28,586,855,495.06/159,105.06
  6. Step 6: Final answer
    x = 179,672.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.