Home / 189,890.30-262,056.66-105,007.26

Finding the Fourth Proportional to 189,890.30, 262,056.66 and 105,007.26

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Solution

The fourth proportional to 189,890.30, 262,056.66 and 105,007.26 is: 144,914.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,890.30 : 262,056.66 = 105,007.26 : x
  2. Step 2: Convert to fraction form
    189,890.30/262,056.66 = 105,007.26/x
  3. Step 3: Cross multiply
    189,890.30x = 262,056.66 × 105,007.26
  4. Step 4: Simplify right side
    189,890.30x = 27,517,851,831.35
  5. Step 5: Solve for x
    x = 27,517,851,831.35/189,890.30
  6. Step 6: Final answer
    x = 144,914.47

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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.