Home / 142,786.32-214,206.52-57,403.78

Finding the Fourth Proportional to 142,786.32, 214,206.52 and 57,403.78

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Solution

The fourth proportional to 142,786.32, 214,206.52 and 57,403.78 is: 86,116.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,786.32 : 214,206.52 = 57,403.78 : x
  2. Step 2: Convert to fraction form
    142,786.32/214,206.52 = 57,403.78/x
  3. Step 3: Cross multiply
    142,786.32x = 214,206.52 × 57,403.78
  4. Step 4: Simplify right side
    142,786.32x = 12,296,263,948.65
  5. Step 5: Solve for x
    x = 12,296,263,948.65/142,786.32
  6. Step 6: Final answer
    x = 86,116.54

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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.