Home / 146,731.72-220,172.64-69,881.74

Finding the Fourth Proportional to 146,731.72, 220,172.64 and 69,881.74

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Solution

The fourth proportional to 146,731.72, 220,172.64 and 69,881.74 is: 104,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,731.72 : 220,172.64 = 69,881.74 : x
  2. Step 2: Convert to fraction form
    146,731.72/220,172.64 = 69,881.74/x
  3. Step 3: Cross multiply
    146,731.72x = 220,172.64 × 69,881.74
  4. Step 4: Simplify right side
    146,731.72x = 15,386,047,183.59
  5. Step 5: Solve for x
    x = 15,386,047,183.59/146,731.72
  6. Step 6: Final answer
    x = 104,858.36

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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.