Home / 117,971.71-162,836.54-80,267.83

Finding the Fourth Proportional to 117,971.71, 162,836.54 and 80,267.83

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Solution

The fourth proportional to 117,971.71, 162,836.54 and 80,267.83 is: 110,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,971.71 : 162,836.54 = 80,267.83 : x
  2. Step 2: Convert to fraction form
    117,971.71/162,836.54 = 80,267.83/x
  3. Step 3: Cross multiply
    117,971.71x = 162,836.54 × 80,267.83
  4. Step 4: Simplify right side
    117,971.71x = 13,070,535,710.51
  5. Step 5: Solve for x
    x = 13,070,535,710.51/117,971.71
  6. Step 6: Final answer
    x = 110,793.81

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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.