Home / 103,055.25-142,216.26-58,343.25

Finding the Fourth Proportional to 103,055.25, 142,216.26 and 58,343.25

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Solution

The fourth proportional to 103,055.25, 142,216.26 and 58,343.25 is: 80,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,055.25 : 142,216.26 = 58,343.25 : x
  2. Step 2: Convert to fraction form
    103,055.25/142,216.26 = 58,343.25/x
  3. Step 3: Cross multiply
    103,055.25x = 142,216.26 × 58,343.25
  4. Step 4: Simplify right side
    103,055.25x = 8,297,358,811.25
  5. Step 5: Solve for x
    x = 8,297,358,811.25/103,055.25
  6. Step 6: Final answer
    x = 80,513.69

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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.