Home / 162,311.96-223,974.51-90,690.41

Finding the Fourth Proportional to 162,311.96, 223,974.51 and 90,690.41

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Solution

The fourth proportional to 162,311.96, 223,974.51 and 90,690.41 is: 125,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,311.96 : 223,974.51 = 90,690.41 : x
  2. Step 2: Convert to fraction form
    162,311.96/223,974.51 = 90,690.41/x
  3. Step 3: Cross multiply
    162,311.96x = 223,974.51 × 90,690.41
  4. Step 4: Simplify right side
    162,311.96x = 20,312,340,141.45
  5. Step 5: Solve for x
    x = 20,312,340,141.45/162,311.96
  6. Step 6: Final answer
    x = 125,143.83

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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.