Home / 162,021.94-223,590.45-90,406.60

Finding the Fourth Proportional to 162,021.94, 223,590.45 and 90,406.60

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Solution

The fourth proportional to 162,021.94, 223,590.45 and 90,406.60 is: 124,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,021.94 : 223,590.45 = 90,406.60 : x
  2. Step 2: Convert to fraction form
    162,021.94/223,590.45 = 90,406.60/x
  3. Step 3: Cross multiply
    162,021.94x = 223,590.45 × 90,406.60
  4. Step 4: Simplify right side
    162,021.94x = 20,214,052,376.97
  5. Step 5: Solve for x
    x = 20,214,052,376.97/162,021.94
  6. Step 6: Final answer
    x = 124,761.20

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1.5x scale

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.