Home / 130,403.82-179,944.83-103,611.18

Finding the Fourth Proportional to 130,403.82, 179,944.83 and 103,611.18

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Solution

The fourth proportional to 130,403.82, 179,944.83 and 103,611.18 is: 142,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,403.82 : 179,944.83 = 103,611.18 : x
  2. Step 2: Convert to fraction form
    130,403.82/179,944.83 = 103,611.18/x
  3. Step 3: Cross multiply
    130,403.82x = 179,944.83 × 103,611.18
  4. Step 4: Simplify right side
    130,403.82x = 18,644,296,171.20
  5. Step 5: Solve for x
    x = 18,644,296,171.20/130,403.82
  6. Step 6: Final answer
    x = 142,973.54

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1.5x scale

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.