Home / 205,768.36-283,971.35-115,118.93

Finding the Fourth Proportional to 205,768.36, 283,971.35 and 115,118.93

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Solution

The fourth proportional to 205,768.36, 283,971.35 and 115,118.93 is: 158,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,768.36 : 283,971.35 = 115,118.93 : x
  2. Step 2: Convert to fraction form
    205,768.36/283,971.35 = 115,118.93/x
  3. Step 3: Cross multiply
    205,768.36x = 283,971.35 × 115,118.93
  4. Step 4: Simplify right side
    205,768.36x = 32,690,478,960.38
  5. Step 5: Solve for x
    x = 32,690,478,960.38/205,768.36
  6. Step 6: Final answer
    x = 158,870.29

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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.