Home / 165,731.16-248,705.70-90,903.75

Finding the Fourth Proportional to 165,731.16, 248,705.70 and 90,903.75

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Solution

The fourth proportional to 165,731.16, 248,705.70 and 90,903.75 is: 136,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,731.16 : 248,705.70 = 90,903.75 : x
  2. Step 2: Convert to fraction form
    165,731.16/248,705.70 = 90,903.75/x
  3. Step 3: Cross multiply
    165,731.16x = 248,705.70 × 90,903.75
  4. Step 4: Simplify right side
    165,731.16x = 22,608,280,776.38
  5. Step 5: Solve for x
    x = 22,608,280,776.38/165,731.16
  6. Step 6: Final answer
    x = 136,415.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.