Home / 165,840.24-228,853.44-90,387.12

Finding the Fourth Proportional to 165,840.24, 228,853.44 and 90,387.12

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Solution

The fourth proportional to 165,840.24, 228,853.44 and 90,387.12 is: 124,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,840.24 : 228,853.44 = 90,387.12 : x
  2. Step 2: Convert to fraction form
    165,840.24/228,853.44 = 90,387.12/x
  3. Step 3: Cross multiply
    165,840.24x = 228,853.44 × 90,387.12
  4. Step 4: Simplify right side
    165,840.24x = 20,685,403,343.69
  5. Step 5: Solve for x
    x = 20,685,403,343.69/165,840.24
  6. Step 6: Final answer
    x = 124,730.91

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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.