Home / 140,120.48-210,151.56-55,828.64

Finding the Fourth Proportional to 140,120.48, 210,151.56 and 55,828.64

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Solution

The fourth proportional to 140,120.48, 210,151.56 and 55,828.64 is: 83,731.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,120.48 : 210,151.56 = 55,828.64 : x
  2. Step 2: Convert to fraction form
    140,120.48/210,151.56 = 55,828.64/x
  3. Step 3: Cross multiply
    140,120.48x = 210,151.56 × 55,828.64
  4. Step 4: Simplify right side
    140,120.48x = 11,732,475,788.68
  5. Step 5: Solve for x
    x = 11,732,475,788.68/140,120.48
  6. Step 6: Final answer
    x = 83,731.34

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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.