Home / 165,030.72-227,742.64-89,579.28

Finding the Fourth Proportional to 165,030.72, 227,742.64 and 89,579.28

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Solution

The fourth proportional to 165,030.72, 227,742.64 and 89,579.28 is: 123,619.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,030.72 : 227,742.64 = 89,579.28 : x
  2. Step 2: Convert to fraction form
    165,030.72/227,742.64 = 89,579.28/x
  3. Step 3: Cross multiply
    165,030.72x = 227,742.64 × 89,579.28
  4. Step 4: Simplify right side
    165,030.72x = 20,401,021,716.50
  5. Step 5: Solve for x
    x = 20,401,021,716.50/165,030.72
  6. Step 6: Final answer
    x = 123,619.54

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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.