Home / 130,620.34-180,293.33-76,936.30

Finding the Fourth Proportional to 130,620.34, 180,293.33 and 76,936.30

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Solution

The fourth proportional to 130,620.34, 180,293.33 and 76,936.30 is: 106,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,620.34 : 180,293.33 = 76,936.30 : x
  2. Step 2: Convert to fraction form
    130,620.34/180,293.33 = 76,936.30/x
  3. Step 3: Cross multiply
    130,620.34x = 180,293.33 × 76,936.30
  4. Step 4: Simplify right side
    130,620.34x = 13,871,101,724.88
  5. Step 5: Solve for x
    x = 13,871,101,724.88/130,620.34
  6. Step 6: Final answer
    x = 106,194.04

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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.