Home / 145,890.86-201,396.61-102,905.37

Finding the Fourth Proportional to 145,890.86, 201,396.61 and 102,905.37

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Solution

The fourth proportional to 145,890.86, 201,396.61 and 102,905.37 is: 142,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,890.86 : 201,396.61 = 102,905.37 : x
  2. Step 2: Convert to fraction form
    145,890.86/201,396.61 = 102,905.37/x
  3. Step 3: Cross multiply
    145,890.86x = 201,396.61 × 102,905.37
  4. Step 4: Simplify right side
    145,890.86x = 20,724,792,797.43
  5. Step 5: Solve for x
    x = 20,724,792,797.43/145,890.86
  6. Step 6: Final answer
    x = 142,056.83

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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.