Home / 98,708.40-136,131.48-69,971.22

Finding the Fourth Proportional to 98,708.40, 136,131.48 and 69,971.22

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Solution

The fourth proportional to 98,708.40, 136,131.48 and 69,971.22 is: 96,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,708.40 : 136,131.48 = 69,971.22 : x
  2. Step 2: Convert to fraction form
    98,708.40/136,131.48 = 69,971.22/x
  3. Step 3: Cross multiply
    98,708.40x = 136,131.48 × 69,971.22
  4. Step 4: Simplify right side
    98,708.40x = 9,525,285,736.01
  5. Step 5: Solve for x
    x = 9,525,285,736.01/98,708.40
  6. Step 6: Final answer
    x = 96,499.24

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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.