Home / 98,396.56-135,726.60-70,111.36

Finding the Fourth Proportional to 98,396.56, 135,726.60 and 70,111.36

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Solution

The fourth proportional to 98,396.56, 135,726.60 and 70,111.36 is: 96,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,396.56 : 135,726.60 = 70,111.36 : x
  2. Step 2: Convert to fraction form
    98,396.56/135,726.60 = 70,111.36/x
  3. Step 3: Cross multiply
    98,396.56x = 135,726.60 × 70,111.36
  4. Step 4: Simplify right side
    98,396.56x = 9,515,976,514.18
  5. Step 5: Solve for x
    x = 9,515,976,514.18/98,396.56
  6. Step 6: Final answer
    x = 96,710.46

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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.