Home / 112,650.74-155,388.01-69,643.38

Finding the Fourth Proportional to 112,650.74, 155,388.01 and 69,643.38

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Solution

The fourth proportional to 112,650.74, 155,388.01 and 69,643.38 is: 96,064.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,650.74 : 155,388.01 = 69,643.38 : x
  2. Step 2: Convert to fraction form
    112,650.74/155,388.01 = 69,643.38/x
  3. Step 3: Cross multiply
    112,650.74x = 155,388.01 × 69,643.38
  4. Step 4: Simplify right side
    112,650.74x = 10,821,746,450.60
  5. Step 5: Solve for x
    x = 10,821,746,450.60/112,650.74
  6. Step 6: Final answer
    x = 96,064.59

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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.