Home / 190,211.48-262,488.62-105,326.72

Finding the Fourth Proportional to 190,211.48, 262,488.62 and 105,326.72

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Solution

The fourth proportional to 190,211.48, 262,488.62 and 105,326.72 is: 145,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,211.48 : 262,488.62 = 105,326.72 : x
  2. Step 2: Convert to fraction form
    190,211.48/262,488.62 = 105,326.72/x
  3. Step 3: Cross multiply
    190,211.48x = 262,488.62 × 105,326.72
  4. Step 4: Simplify right side
    190,211.48x = 27,647,065,381.93
  5. Step 5: Solve for x
    x = 27,647,065,381.93/190,211.48
  6. Step 6: Final answer
    x = 145,349.09

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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.