Home / 154,826.83-213,706.38-101,120.19

Finding the Fourth Proportional to 154,826.83, 213,706.38 and 101,120.19

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Solution

The fourth proportional to 154,826.83, 213,706.38 and 101,120.19 is: 139,575.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,826.83 : 213,706.38 = 101,120.19 : x
  2. Step 2: Convert to fraction form
    154,826.83/213,706.38 = 101,120.19/x
  3. Step 3: Cross multiply
    154,826.83x = 213,706.38 × 101,120.19
  4. Step 4: Simplify right side
    154,826.83x = 21,610,029,749.81
  5. Step 5: Solve for x
    x = 21,610,029,749.81/154,826.83
  6. Step 6: Final answer
    x = 139,575.48

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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.