Home / 130,241.72-179,741.11-72,880.54

Finding the Fourth Proportional to 130,241.72, 179,741.11 and 72,880.54

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Solution

The fourth proportional to 130,241.72, 179,741.11 and 72,880.54 is: 100,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,241.72 : 179,741.11 = 72,880.54 : x
  2. Step 2: Convert to fraction form
    130,241.72/179,741.11 = 72,880.54/x
  3. Step 3: Cross multiply
    130,241.72x = 179,741.11 × 72,880.54
  4. Step 4: Simplify right side
    130,241.72x = 13,099,628,928.48
  5. Step 5: Solve for x
    x = 13,099,628,928.48/130,241.72
  6. Step 6: Final answer
    x = 100,579.36

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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.