Home / 103,619.94-142,989.64-58,299.83

Finding the Fourth Proportional to 103,619.94, 142,989.64 and 58,299.83

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Solution

The fourth proportional to 103,619.94, 142,989.64 and 58,299.83 is: 80,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.94 : 142,989.64 = 58,299.83 : x
  2. Step 2: Convert to fraction form
    103,619.94/142,989.64 = 58,299.83/x
  3. Step 3: Cross multiply
    103,619.94x = 142,989.64 × 58,299.83
  4. Step 4: Simplify right side
    103,619.94x = 8,336,271,703.76
  5. Step 5: Solve for x
    x = 8,336,271,703.76/103,619.94
  6. Step 6: Final answer
    x = 80,450.46

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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.