Home / 190,130.86-262,142.40-122,027.68

Finding the Fourth Proportional to 190,130.86, 262,142.40 and 122,027.68

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Solution

The fourth proportional to 190,130.86, 262,142.40 and 122,027.68 is: 168,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,130.86 : 262,142.40 = 122,027.68 : x
  2. Step 2: Convert to fraction form
    190,130.86/262,142.40 = 122,027.68/x
  3. Step 3: Cross multiply
    190,130.86x = 262,142.40 × 122,027.68
  4. Step 4: Simplify right side
    190,130.86x = 31,988,628,901.63
  5. Step 5: Solve for x
    x = 31,988,628,901.63/190,130.86
  6. Step 6: Final answer
    x = 168,245.33

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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.