Home / 165,535.84-248,236.56-81,332.32

Finding the Fourth Proportional to 165,535.84, 248,236.56 and 81,332.32

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Solution

The fourth proportional to 165,535.84, 248,236.56 and 81,332.32 is: 121,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,535.84 : 248,236.56 = 81,332.32 : x
  2. Step 2: Convert to fraction form
    165,535.84/248,236.56 = 81,332.32/x
  3. Step 3: Cross multiply
    165,535.84x = 248,236.56 × 81,332.32
  4. Step 4: Simplify right side
    165,535.84x = 20,189,655,333.62
  5. Step 5: Solve for x
    x = 20,189,655,333.62/165,535.84
  6. Step 6: Final answer
    x = 121,965.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.