Home / 190,040.45-262,262.81-122,972.45

Finding the Fourth Proportional to 190,040.45, 262,262.81 and 122,972.45

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Solution

The fourth proportional to 190,040.45, 262,262.81 and 122,972.45 is: 169,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,040.45 : 262,262.81 = 122,972.45 : x
  2. Step 2: Convert to fraction form
    190,040.45/262,262.81 = 122,972.45/x
  3. Step 3: Cross multiply
    190,040.45x = 262,262.81 × 122,972.45
  4. Step 4: Simplify right side
    190,040.45x = 32,251,099,285.70
  5. Step 5: Solve for x
    x = 32,251,099,285.70/190,040.45
  6. Step 6: Final answer
    x = 169,706.50

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1.5x scale

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.