Home / 190,657.02-262,889.91-121,653.66

Finding the Fourth Proportional to 190,657.02, 262,889.91 and 121,653.66

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Solution

The fourth proportional to 190,657.02, 262,889.91 and 121,653.66 is: 167,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,657.02 : 262,889.91 = 121,653.66 : x
  2. Step 2: Convert to fraction form
    190,657.02/262,889.91 = 121,653.66/x
  3. Step 3: Cross multiply
    190,657.02x = 262,889.91 × 121,653.66
  4. Step 4: Simplify right side
    190,657.02x = 31,981,519,728.57
  5. Step 5: Solve for x
    x = 31,981,519,728.57/190,657.02
  6. Step 6: Final answer
    x = 167,743.73

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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.