Home / 190,029.78-262,241.12-103,988.78

Finding the Fourth Proportional to 190,029.78, 262,241.12 and 103,988.78

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Solution

The fourth proportional to 190,029.78, 262,241.12 and 103,988.78 is: 143,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,029.78 : 262,241.12 = 103,988.78 : x
  2. Step 2: Convert to fraction form
    190,029.78/262,241.12 = 103,988.78/x
  3. Step 3: Cross multiply
    190,029.78x = 262,241.12 × 103,988.78
  4. Step 4: Simplify right side
    190,029.78x = 27,270,132,303.48
  5. Step 5: Solve for x
    x = 27,270,132,303.48/190,029.78
  6. Step 6: Final answer
    x = 143,504.52

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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.