Home / 117,663.90-162,316.37-76,851.93

Finding the Fourth Proportional to 117,663.90, 162,316.37 and 76,851.93

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Solution

The fourth proportional to 117,663.90, 162,316.37 and 76,851.93 is: 106,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,663.90 : 162,316.37 = 76,851.93 : x
  2. Step 2: Convert to fraction form
    117,663.90/162,316.37 = 76,851.93/x
  3. Step 3: Cross multiply
    117,663.90x = 162,316.37 × 76,851.93
  4. Step 4: Simplify right side
    117,663.90x = 12,474,325,920.83
  5. Step 5: Solve for x
    x = 12,474,325,920.83/117,663.90
  6. Step 6: Final answer
    x = 106,016.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.