Home / 169,666.36-254,443.03-68,438.28

Finding the Fourth Proportional to 169,666.36, 254,443.03 and 68,438.28

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Solution

The fourth proportional to 169,666.36, 254,443.03 and 68,438.28 is: 102,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,666.36 : 254,443.03 = 68,438.28 : x
  2. Step 2: Convert to fraction form
    169,666.36/254,443.03 = 68,438.28/x
  3. Step 3: Cross multiply
    169,666.36x = 254,443.03 × 68,438.28
  4. Step 4: Simplify right side
    169,666.36x = 17,413,642,159.87
  5. Step 5: Solve for x
    x = 17,413,642,159.87/169,666.36
  6. Step 6: Final answer
    x = 102,634.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.