Home / 130,991.54-180,768.93-74,406.02

Finding the Fourth Proportional to 130,991.54, 180,768.93 and 74,406.02

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Solution

The fourth proportional to 130,991.54, 180,768.93 and 74,406.02 is: 102,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,991.54 : 180,768.93 = 74,406.02 : x
  2. Step 2: Convert to fraction form
    130,991.54/180,768.93 = 74,406.02/x
  3. Step 3: Cross multiply
    130,991.54x = 180,768.93 × 74,406.02
  4. Step 4: Simplify right side
    130,991.54x = 13,450,296,620.96
  5. Step 5: Solve for x
    x = 13,450,296,620.96/130,991.54
  6. Step 6: Final answer
    x = 102,680.65

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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.