Home / 189,917.28-262,084.32-105,032.16

Finding the Fourth Proportional to 189,917.28, 262,084.32 and 105,032.16

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Solution

The fourth proportional to 189,917.28, 262,084.32 and 105,032.16 is: 144,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,917.28 : 262,084.32 = 105,032.16 : x
  2. Step 2: Convert to fraction form
    189,917.28/262,084.32 = 105,032.16/x
  3. Step 3: Cross multiply
    189,917.28x = 262,084.32 × 105,032.16
  4. Step 4: Simplify right side
    189,917.28x = 27,527,282,231.73
  5. Step 5: Solve for x
    x = 27,527,282,231.73/189,917.28
  6. Step 6: Final answer
    x = 144,943.54

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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.