Home / 165,798.24-228,801.40-90,346.72

Finding the Fourth Proportional to 165,798.24, 228,801.40 and 90,346.72

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Solution

The fourth proportional to 165,798.24, 228,801.40 and 90,346.72 is: 124,678.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,798.24 : 228,801.40 = 90,346.72 : x
  2. Step 2: Convert to fraction form
    165,798.24/228,801.40 = 90,346.72/x
  3. Step 3: Cross multiply
    165,798.24x = 228,801.40 × 90,346.72
  4. Step 4: Simplify right side
    165,798.24x = 20,671,456,021.41
  5. Step 5: Solve for x
    x = 20,671,456,021.41/165,798.24
  6. Step 6: Final answer
    x = 124,678.38

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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.