Home / 113,121.36-169,681.96-28,881.54

Finding the Fourth Proportional to 113,121.36, 169,681.96 and 28,881.54

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Solution

The fourth proportional to 113,121.36, 169,681.96 and 28,881.54 is: 43,322.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,121.36 : 169,681.96 = 28,881.54 : x
  2. Step 2: Convert to fraction form
    113,121.36/169,681.96 = 28,881.54/x
  3. Step 3: Cross multiply
    113,121.36x = 169,681.96 × 28,881.54
  4. Step 4: Simplify right side
    113,121.36x = 4,900,675,955.12
  5. Step 5: Solve for x
    x = 4,900,675,955.12/113,121.36
  6. Step 6: Final answer
    x = 43,322.29

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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.