Home / 130,333.68-179,849.72-76,620.96

Finding the Fourth Proportional to 130,333.68, 179,849.72 and 76,620.96

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Solution

The fourth proportional to 130,333.68, 179,849.72 and 76,620.96 is: 105,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,333.68 : 179,849.72 = 76,620.96 : x
  2. Step 2: Convert to fraction form
    130,333.68/179,849.72 = 76,620.96/x
  3. Step 3: Cross multiply
    130,333.68x = 179,849.72 × 76,620.96
  4. Step 4: Simplify right side
    130,333.68x = 13,780,258,202.13
  5. Step 5: Solve for x
    x = 13,780,258,202.13/130,333.68
  6. Step 6: Final answer
    x = 105,730.60

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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.