Home / 147,280.56-203,241.68-90,015.76

Finding the Fourth Proportional to 147,280.56, 203,241.68 and 90,015.76

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Solution

The fourth proportional to 147,280.56, 203,241.68 and 90,015.76 is: 124,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,280.56 : 203,241.68 = 90,015.76 : x
  2. Step 2: Convert to fraction form
    147,280.56/203,241.68 = 90,015.76/x
  3. Step 3: Cross multiply
    147,280.56x = 203,241.68 × 90,015.76
  4. Step 4: Simplify right side
    147,280.56x = 18,294,954,288.88
  5. Step 5: Solve for x
    x = 18,294,954,288.88/147,280.56
  6. Step 6: Final answer
    x = 124,218.39

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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.