Home / 102,969.60-142,099.56-62,685.08

Finding the Fourth Proportional to 102,969.60, 142,099.56 and 62,685.08

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Solution

The fourth proportional to 102,969.60, 142,099.56 and 62,685.08 is: 86,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,969.60 : 142,099.56 = 62,685.08 : x
  2. Step 2: Convert to fraction form
    102,969.60/142,099.56 = 62,685.08/x
  3. Step 3: Cross multiply
    102,969.60x = 142,099.56 × 62,685.08
  4. Step 4: Simplify right side
    102,969.60x = 8,907,522,286.56
  5. Step 5: Solve for x
    x = 8,907,522,286.56/102,969.60
  6. Step 6: Final answer
    x = 86,506.33

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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.