Home / 207,154.98-285,895.80-126,629.64

Finding the Fourth Proportional to 207,154.98, 285,895.80 and 126,629.64

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Solution

The fourth proportional to 207,154.98, 285,895.80 and 126,629.64 is: 174,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,154.98 : 285,895.80 = 126,629.64 : x
  2. Step 2: Convert to fraction form
    207,154.98/285,895.80 = 126,629.64/x
  3. Step 3: Cross multiply
    207,154.98x = 285,895.80 × 126,629.64
  4. Step 4: Simplify right side
    207,154.98x = 36,202,882,231.51
  5. Step 5: Solve for x
    x = 36,202,882,231.51/207,154.98
  6. Step 6: Final answer
    x = 174,762.31

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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.