Home / 130,375.12-179,902.78-73,006.46

Finding the Fourth Proportional to 130,375.12, 179,902.78 and 73,006.46

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Solution

The fourth proportional to 130,375.12, 179,902.78 and 73,006.46 is: 100,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,375.12 : 179,902.78 = 73,006.46 : x
  2. Step 2: Convert to fraction form
    130,375.12/179,902.78 = 73,006.46/x
  3. Step 3: Cross multiply
    130,375.12x = 179,902.78 × 73,006.46
  4. Step 4: Simplify right side
    130,375.12x = 13,134,065,111.96
  5. Step 5: Solve for x
    x = 13,134,065,111.96/130,375.12
  6. Step 6: Final answer
    x = 100,740.58

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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.