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Finding the Fourth Proportional to 125,438.77, 173,112.48 and 70,993.74

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Solution

The fourth proportional to 125,438.77, 173,112.48 and 70,993.74 is: 97,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,438.77 : 173,112.48 = 70,993.74 : x
  2. Step 2: Convert to fraction form
    125,438.77/173,112.48 = 70,993.74/x
  3. Step 3: Cross multiply
    125,438.77x = 173,112.48 × 70,993.74
  4. Step 4: Simplify right side
    125,438.77x = 12,289,902,395.88
  5. Step 5: Solve for x
    x = 12,289,902,395.88/125,438.77
  6. Step 6: Final answer
    x = 97,975.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.