Home / 190,577.10-263,012.55-105,721.50

Finding the Fourth Proportional to 190,577.10, 263,012.55 and 105,721.50

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Solution

The fourth proportional to 190,577.10, 263,012.55 and 105,721.50 is: 145,904.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,577.10 : 263,012.55 = 105,721.50 : x
  2. Step 2: Convert to fraction form
    190,577.10/263,012.55 = 105,721.50/x
  3. Step 3: Cross multiply
    190,577.10x = 263,012.55 × 105,721.50
  4. Step 4: Simplify right side
    190,577.10x = 27,806,081,304.83
  5. Step 5: Solve for x
    x = 27,806,081,304.83/190,577.10
  6. Step 6: Final answer
    x = 145,904.63

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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.