Home / 102,065.37-140,842.23-56,740.60

Finding the Fourth Proportional to 102,065.37, 140,842.23 and 56,740.60

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Solution

The fourth proportional to 102,065.37, 140,842.23 and 56,740.60 is: 78,297.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,065.37 : 140,842.23 = 56,740.60 : x
  2. Step 2: Convert to fraction form
    102,065.37/140,842.23 = 56,740.60/x
  3. Step 3: Cross multiply
    102,065.37x = 140,842.23 × 56,740.60
  4. Step 4: Simplify right side
    102,065.37x = 7,991,471,647.62
  5. Step 5: Solve for x
    x = 7,991,471,647.62/102,065.37
  6. Step 6: Final answer
    x = 78,297.58

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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.