Home / 188,904.75-260,688.56-104,021.61

Finding the Fourth Proportional to 188,904.75, 260,688.56 and 104,021.61

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Solution

The fourth proportional to 188,904.75, 260,688.56 and 104,021.61 is: 143,549.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,904.75 : 260,688.56 = 104,021.61 : x
  2. Step 2: Convert to fraction form
    188,904.75/260,688.56 = 104,021.61/x
  3. Step 3: Cross multiply
    188,904.75x = 260,688.56 × 104,021.61
  4. Step 4: Simplify right side
    188,904.75x = 27,117,243,199.67
  5. Step 5: Solve for x
    x = 27,117,243,199.67/188,904.75
  6. Step 6: Final answer
    x = 143,549.82

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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.