Home / 103,688.26-143,090.01-58,976.26

Finding the Fourth Proportional to 103,688.26, 143,090.01 and 58,976.26

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Solution

The fourth proportional to 103,688.26, 143,090.01 and 58,976.26 is: 81,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688.26 : 143,090.01 = 58,976.26 : x
  2. Step 2: Convert to fraction form
    103,688.26/143,090.01 = 58,976.26/x
  3. Step 3: Cross multiply
    103,688.26x = 143,090.01 × 58,976.26
  4. Step 4: Simplify right side
    103,688.26x = 8,438,913,633.16
  5. Step 5: Solve for x
    x = 8,438,913,633.16/103,688.26
  6. Step 6: Final answer
    x = 81,387.36

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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.