Home / 130,531.44-180,162.36-73,974

Finding the Fourth Proportional to 130,531.44, 180,162.36 and 73,974

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Solution

The fourth proportional to 130,531.44, 180,162.36 and 73,974 is: 102,100.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,531.44 : 180,162.36 = 73,974 : x
  2. Step 2: Convert to fraction form
    130,531.44/180,162.36 = 73,974/x
  3. Step 3: Cross multiply
    130,531.44x = 180,162.36 × 73,974
  4. Step 4: Simplify right side
    130,531.44x = 13,327,330,418.64
  5. Step 5: Solve for x
    x = 13,327,330,418.64/130,531.44
  6. Step 6: Final answer
    x = 102,100.54

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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.