Home / 115,976.80-160,340.48-85,714.39

Finding the Fourth Proportional to 115,976.80, 160,340.48 and 85,714.39

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Solution

The fourth proportional to 115,976.80, 160,340.48 and 85,714.39 is: 118,502.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,976.80 : 160,340.48 = 85,714.39 : x
  2. Step 2: Convert to fraction form
    115,976.80/160,340.48 = 85,714.39/x
  3. Step 3: Cross multiply
    115,976.80x = 160,340.48 × 85,714.39
  4. Step 4: Simplify right side
    115,976.80x = 13,743,486,435.51
  5. Step 5: Solve for x
    x = 13,743,486,435.51/115,976.80
  6. Step 6: Final answer
    x = 118,502.03

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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.