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Finding the Fourth Proportional to 165,373.77, 247,775.35 and 90,547.77

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Solution

The fourth proportional to 165,373.77, 247,775.35 and 90,547.77 is: 135,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,373.77 : 247,775.35 = 90,547.77 : x
  2. Step 2: Convert to fraction form
    165,373.77/247,775.35 = 90,547.77/x
  3. Step 3: Cross multiply
    165,373.77x = 247,775.35 × 90,547.77
  4. Step 4: Simplify right side
    165,373.77x = 22,435,505,403.47
  5. Step 5: Solve for x
    x = 22,435,505,403.47/165,373.77
  6. Step 6: Final answer
    x = 135,665.44

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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.