Home / 165,420.93-248,156-76,683.41

Finding the Fourth Proportional to 165,420.93, 248,156 and 76,683.41

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Solution

The fourth proportional to 165,420.93, 248,156 and 76,683.41 is: 115,036.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,420.93 : 248,156 = 76,683.41 : x
  2. Step 2: Convert to fraction form
    165,420.93/248,156 = 76,683.41/x
  3. Step 3: Cross multiply
    165,420.93x = 248,156 × 76,683.41
  4. Step 4: Simplify right side
    165,420.93x = 19,029,448,291.96
  5. Step 5: Solve for x
    x = 19,029,448,291.96/165,420.93
  6. Step 6: Final answer
    x = 115,036.52

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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.