Home / 142,828.48-214,048.16-54,034.24

Finding the Fourth Proportional to 142,828.48, 214,048.16 and 54,034.24

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Solution

The fourth proportional to 142,828.48, 214,048.16 and 54,034.24 is: 80,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,828.48 : 214,048.16 = 54,034.24 : x
  2. Step 2: Convert to fraction form
    142,828.48/214,048.16 = 54,034.24/x
  3. Step 3: Cross multiply
    142,828.48x = 214,048.16 × 54,034.24
  4. Step 4: Simplify right side
    142,828.48x = 11,565,929,649.00
  5. Step 5: Solve for x
    x = 11,565,929,649.00/142,828.48
  6. Step 6: Final answer
    x = 80,977.75

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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.