Home / 142,412.44-213,450.94-58,120

Finding the Fourth Proportional to 142,412.44, 213,450.94 and 58,120

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Solution

The fourth proportional to 142,412.44, 213,450.94 and 58,120 is: 87,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,412.44 : 213,450.94 = 58,120 : x
  2. Step 2: Convert to fraction form
    142,412.44/213,450.94 = 58,120/x
  3. Step 3: Cross multiply
    142,412.44x = 213,450.94 × 58,120
  4. Step 4: Simplify right side
    142,412.44x = 12,405,768,632.80
  5. Step 5: Solve for x
    x = 12,405,768,632.80/142,412.44
  6. Step 6: Final answer
    x = 87,111.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.