Home / 117,664.65-162,317.40-76,852.68

Finding the Fourth Proportional to 117,664.65, 162,317.40 and 76,852.68

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Solution

The fourth proportional to 117,664.65, 162,317.40 and 76,852.68 is: 106,017.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,664.65 : 162,317.40 = 76,852.68 : x
  2. Step 2: Convert to fraction form
    117,664.65/162,317.40 = 76,852.68/x
  3. Step 3: Cross multiply
    117,664.65x = 162,317.40 × 76,852.68
  4. Step 4: Simplify right side
    117,664.65x = 12,474,527,200.63
  5. Step 5: Solve for x
    x = 12,474,527,200.63/117,664.65
  6. Step 6: Final answer
    x = 106,017.63

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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.