Home / 165,430.72-228,294.62-89,979.22

Finding the Fourth Proportional to 165,430.72, 228,294.62 and 89,979.22

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Solution

The fourth proportional to 165,430.72, 228,294.62 and 89,979.22 is: 124,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,430.72 : 228,294.62 = 89,979.22 : x
  2. Step 2: Convert to fraction form
    165,430.72/228,294.62 = 89,979.22/x
  3. Step 3: Cross multiply
    165,430.72x = 228,294.62 × 89,979.22
  4. Step 4: Simplify right side
    165,430.72x = 20,541,771,837.80
  5. Step 5: Solve for x
    x = 20,541,771,837.80/165,430.72
  6. Step 6: Final answer
    x = 124,171.45

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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.