Home / 119,404.07-164,845.88-79,172.51

Finding the Fourth Proportional to 119,404.07, 164,845.88 and 79,172.51

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Solution

The fourth proportional to 119,404.07, 164,845.88 and 79,172.51 is: 109,303.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,404.07 : 164,845.88 = 79,172.51 : x
  2. Step 2: Convert to fraction form
    119,404.07/164,845.88 = 79,172.51/x
  3. Step 3: Cross multiply
    119,404.07x = 164,845.88 × 79,172.51
  4. Step 4: Simplify right side
    119,404.07x = 13,051,262,995.80
  5. Step 5: Solve for x
    x = 13,051,262,995.80/119,404.07
  6. Step 6: Final answer
    x = 109,303.33

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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.