Home / 190,037.16-262,278.96-109,449

Finding the Fourth Proportional to 190,037.16, 262,278.96 and 109,449

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Solution

The fourth proportional to 190,037.16, 262,278.96 and 109,449 is: 151,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,037.16 : 262,278.96 = 109,449 : x
  2. Step 2: Convert to fraction form
    190,037.16/262,278.96 = 109,449/x
  3. Step 3: Cross multiply
    190,037.16x = 262,278.96 × 109,449
  4. Step 4: Simplify right side
    190,037.16x = 28,706,169,893.04
  5. Step 5: Solve for x
    x = 28,706,169,893.04/190,037.16
  6. Step 6: Final answer
    x = 151,055.56

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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.