Home / 161,627.21-242,194.77-77,271.44

Finding the Fourth Proportional to 161,627.21, 242,194.77 and 77,271.44

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Solution

The fourth proportional to 161,627.21, 242,194.77 and 77,271.44 is: 115,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,627.21 : 242,194.77 = 77,271.44 : x
  2. Step 2: Convert to fraction form
    161,627.21/242,194.77 = 77,271.44/x
  3. Step 3: Cross multiply
    161,627.21x = 242,194.77 × 77,271.44
  4. Step 4: Simplify right side
    161,627.21x = 18,714,737,427.39
  5. Step 5: Solve for x
    x = 18,714,737,427.39/161,627.21
  6. Step 6: Final answer
    x = 115,789.53

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1.5x scale

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.