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Finding the Fourth Proportional to 165,703, 228,671.04 and 90,251.68

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Solution

The fourth proportional to 165,703, 228,671.04 and 90,251.68 is: 124,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,703 : 228,671.04 = 90,251.68 : x
  2. Step 2: Convert to fraction form
    165,703/228,671.04 = 90,251.68/x
  3. Step 3: Cross multiply
    165,703x = 228,671.04 × 90,251.68
  4. Step 4: Simplify right side
    165,703x = 20,637,945,527.35
  5. Step 5: Solve for x
    x = 20,637,945,527.35/165,703
  6. Step 6: Final answer
    x = 124,547.81

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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.