Home / 165,541.50-228,448.08-90,090

Finding the Fourth Proportional to 165,541.50, 228,448.08 and 90,090

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Solution

The fourth proportional to 165,541.50, 228,448.08 and 90,090 is: 124,324.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,541.50 : 228,448.08 = 90,090 : x
  2. Step 2: Convert to fraction form
    165,541.50/228,448.08 = 90,090/x
  3. Step 3: Cross multiply
    165,541.50x = 228,448.08 × 90,090
  4. Step 4: Simplify right side
    165,541.50x = 20,580,887,527.20
  5. Step 5: Solve for x
    x = 20,580,887,527.20/165,541.50
  6. Step 6: Final answer
    x = 124,324.64

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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.