Home / 86,260.44-118,403.40-76,618.20

Finding the Fourth Proportional to 86,260.44, 118,403.40 and 76,618.20

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Solution

The fourth proportional to 86,260.44, 118,403.40 and 76,618.20 is: 105,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,260.44 : 118,403.40 = 76,618.20 : x
  2. Step 2: Convert to fraction form
    86,260.44/118,403.40 = 76,618.20/x
  3. Step 3: Cross multiply
    86,260.44x = 118,403.40 × 76,618.20
  4. Step 4: Simplify right side
    86,260.44x = 9,071,855,381.88
  5. Step 5: Solve for x
    x = 9,071,855,381.88/86,260.44
  6. Step 6: Final answer
    x = 105,168.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.