Home / 145,736.21-200,771.38-139,009.82

Finding the Fourth Proportional to 145,736.21, 200,771.38 and 139,009.82

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Solution

The fourth proportional to 145,736.21, 200,771.38 and 139,009.82 is: 191,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,736.21 : 200,771.38 = 139,009.82 : x
  2. Step 2: Convert to fraction form
    145,736.21/200,771.38 = 139,009.82/x
  3. Step 3: Cross multiply
    145,736.21x = 200,771.38 × 139,009.82
  4. Step 4: Simplify right side
    145,736.21x = 27,909,194,085.16
  5. Step 5: Solve for x
    x = 27,909,194,085.16/145,736.21
  6. Step 6: Final answer
    x = 191,504.87

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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.