Home / 190,403.16-262,764.92-105,514.72

Finding the Fourth Proportional to 190,403.16, 262,764.92 and 105,514.72

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Solution

The fourth proportional to 190,403.16, 262,764.92 and 105,514.72 is: 145,615.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,403.16 : 262,764.92 = 105,514.72 : x
  2. Step 2: Convert to fraction form
    190,403.16/262,764.92 = 105,514.72/x
  3. Step 3: Cross multiply
    190,403.16x = 262,764.92 × 105,514.72
  4. Step 4: Simplify right side
    190,403.16x = 27,725,566,959.62
  5. Step 5: Solve for x
    x = 27,725,566,959.62/190,403.16
  6. Step 6: Final answer
    x = 145,615.06

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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.