Home / 190,488.51-262,778.99-121,610.16

Finding the Fourth Proportional to 190,488.51, 262,778.99 and 121,610.16

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Solution

The fourth proportional to 190,488.51, 262,778.99 and 121,610.16 is: 167,761.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,488.51 : 262,778.99 = 121,610.16 : x
  2. Step 2: Convert to fraction form
    190,488.51/262,778.99 = 121,610.16/x
  3. Step 3: Cross multiply
    190,488.51x = 262,778.99 × 121,610.16
  4. Step 4: Simplify right side
    190,488.51x = 31,956,594,410.49
  5. Step 5: Solve for x
    x = 31,956,594,410.49/190,488.51
  6. Step 6: Final answer
    x = 167,761.27

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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.