Home / 190,564.74-262,972.73-105,689.70

Finding the Fourth Proportional to 190,564.74, 262,972.73 and 105,689.70

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Solution

The fourth proportional to 190,564.74, 262,972.73 and 105,689.70 is: 145,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,564.74 : 262,972.73 = 105,689.70 : x
  2. Step 2: Convert to fraction form
    190,564.74/262,972.73 = 105,689.70/x
  3. Step 3: Cross multiply
    190,564.74x = 262,972.73 × 105,689.70
  4. Step 4: Simplify right side
    190,564.74x = 27,793,508,413.43
  5. Step 5: Solve for x
    x = 27,793,508,413.43/190,564.74
  6. Step 6: Final answer
    x = 145,848.12

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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.