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Finding the Fourth Proportional to 162,303.54, 223,974.68 and 90,684.04

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Solution

The fourth proportional to 162,303.54, 223,974.68 and 90,684.04 is: 125,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,303.54 : 223,974.68 = 90,684.04 : x
  2. Step 2: Convert to fraction form
    162,303.54/223,974.68 = 90,684.04/x
  3. Step 3: Cross multiply
    162,303.54x = 223,974.68 × 90,684.04
  4. Step 4: Simplify right side
    162,303.54x = 20,310,928,840.11
  5. Step 5: Solve for x
    x = 20,310,928,840.11/162,303.54
  6. Step 6: Final answer
    x = 125,141.63

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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.