Home / 190,563.16-262,973.21-117,946.78

Finding the Fourth Proportional to 190,563.16, 262,973.21 and 117,946.78

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Solution

The fourth proportional to 190,563.16, 262,973.21 and 117,946.78 is: 162,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,563.16 : 262,973.21 = 117,946.78 : x
  2. Step 2: Convert to fraction form
    190,563.16/262,973.21 = 117,946.78/x
  3. Step 3: Cross multiply
    190,563.16x = 262,973.21 × 117,946.78
  4. Step 4: Simplify right side
    190,563.16x = 31,016,843,345.76
  5. Step 5: Solve for x
    x = 31,016,843,345.76/190,563.16
  6. Step 6: Final answer
    x = 162,764.11

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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.