Home / 104,090.36-143,570.59-71,837.28

Finding the Fourth Proportional to 104,090.36, 143,570.59 and 71,837.28

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Solution

The fourth proportional to 104,090.36, 143,570.59 and 71,837.28 is: 99,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,090.36 : 143,570.59 = 71,837.28 : x
  2. Step 2: Convert to fraction form
    104,090.36/143,570.59 = 71,837.28/x
  3. Step 3: Cross multiply
    104,090.36x = 143,570.59 × 71,837.28
  4. Step 4: Simplify right side
    104,090.36x = 10,313,720,494.00
  5. Step 5: Solve for x
    x = 10,313,720,494.00/104,090.36
  6. Step 6: Final answer
    x = 99,084.31

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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.