Home / 190,412.75-262,769.61-105,535.28

Finding the Fourth Proportional to 190,412.75, 262,769.61 and 105,535.28

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Solution

The fourth proportional to 190,412.75, 262,769.61 and 105,535.28 is: 145,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,412.75 : 262,769.61 = 105,535.28 : x
  2. Step 2: Convert to fraction form
    190,412.75/262,769.61 = 105,535.28/x
  3. Step 3: Cross multiply
    190,412.75x = 262,769.61 × 105,535.28
  4. Step 4: Simplify right side
    190,412.75x = 27,731,464,366.84
  5. Step 5: Solve for x
    x = 27,731,464,366.84/190,412.75
  6. Step 6: Final answer
    x = 145,638.69

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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.