Home / 190,485.34-263,047.64-122,620.10

Finding the Fourth Proportional to 190,485.34, 263,047.64 and 122,620.10

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Solution

The fourth proportional to 190,485.34, 263,047.64 and 122,620.10 is: 169,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,485.34 : 263,047.64 = 122,620.10 : x
  2. Step 2: Convert to fraction form
    190,485.34/263,047.64 = 122,620.10/x
  3. Step 3: Cross multiply
    190,485.34x = 263,047.64 × 122,620.10
  4. Step 4: Simplify right side
    190,485.34x = 32,254,925,993.23
  5. Step 5: Solve for x
    x = 32,254,925,993.23/190,485.34
  6. Step 6: Final answer
    x = 169,330.23

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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.