Home / 165,798.18-228,801.78-90,346.68

Finding the Fourth Proportional to 165,798.18, 228,801.78 and 90,346.68

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Solution

The fourth proportional to 165,798.18, 228,801.78 and 90,346.68 is: 124,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,798.18 : 228,801.78 = 90,346.68 : x
  2. Step 2: Convert to fraction form
    165,798.18/228,801.78 = 90,346.68/x
  3. Step 3: Cross multiply
    165,798.18x = 228,801.78 × 90,346.68
  4. Step 4: Simplify right side
    165,798.18x = 20,671,481,201.09
  5. Step 5: Solve for x
    x = 20,671,481,201.09/165,798.18
  6. Step 6: Final answer
    x = 124,678.58

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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.