Home / 261,975.94-361,526.79-142,743.94

Finding the Fourth Proportional to 261,975.94, 361,526.79 and 142,743.94

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Solution

The fourth proportional to 261,975.94, 361,526.79 and 142,743.94 is: 196,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,975.94 : 361,526.79 = 142,743.94 : x
  2. Step 2: Convert to fraction form
    261,975.94/361,526.79 = 142,743.94/x
  3. Step 3: Cross multiply
    261,975.94x = 361,526.79 × 142,743.94
  4. Step 4: Simplify right side
    261,975.94x = 51,605,758,051.63
  5. Step 5: Solve for x
    x = 51,605,758,051.63/261,975.94
  6. Step 6: Final answer
    x = 196,986.63

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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.