Home / 231,681.23-319,625.07-140,964.47

Finding the Fourth Proportional to 231,681.23, 319,625.07 and 140,964.47

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Solution

The fourth proportional to 231,681.23, 319,625.07 and 140,964.47 is: 194,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,681.23 : 319,625.07 = 140,964.47 : x
  2. Step 2: Convert to fraction form
    231,681.23/319,625.07 = 140,964.47/x
  3. Step 3: Cross multiply
    231,681.23x = 319,625.07 × 140,964.47
  4. Step 4: Simplify right side
    231,681.23x = 45,055,776,993.14
  5. Step 5: Solve for x
    x = 45,055,776,993.14/231,681.23
  6. Step 6: Final answer
    x = 194,473.15

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1.5x scale

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.