Home / 190,555.68-262,965.36-105,672.96

Finding the Fourth Proportional to 190,555.68, 262,965.36 and 105,672.96

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Solution

The fourth proportional to 190,555.68, 262,965.36 and 105,672.96 is: 145,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,555.68 : 262,965.36 = 105,672.96 : x
  2. Step 2: Convert to fraction form
    190,555.68/262,965.36 = 105,672.96/x
  3. Step 3: Cross multiply
    190,555.68x = 262,965.36 × 105,672.96
  4. Step 4: Simplify right side
    190,555.68x = 27,788,327,968.67
  5. Step 5: Solve for x
    x = 27,788,327,968.67/190,555.68
  6. Step 6: Final answer
    x = 145,827.86

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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.