Home / 190,939.40-286,409.10-164,112.20

Finding the Fourth Proportional to 190,939.40, 286,409.10 and 164,112.20

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Solution

The fourth proportional to 190,939.40, 286,409.10 and 164,112.20 is: 246,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,939.40 : 286,409.10 = 164,112.20 : x
  2. Step 2: Convert to fraction form
    190,939.40/286,409.10 = 164,112.20/x
  3. Step 3: Cross multiply
    190,939.40x = 286,409.10 × 164,112.20
  4. Step 4: Simplify right side
    190,939.40x = 47,003,227,501.02
  5. Step 5: Solve for x
    x = 47,003,227,501.02/190,939.40
  6. Step 6: Final answer
    x = 246,168.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.