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Finding the Fourth Proportional to 162,107.82, 223,704.14 and 90,486.30

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Solution

The fourth proportional to 162,107.82, 223,704.14 and 90,486.30 is: 124,868.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,107.82 : 223,704.14 = 90,486.30 : x
  2. Step 2: Convert to fraction form
    162,107.82/223,704.14 = 90,486.30/x
  3. Step 3: Cross multiply
    162,107.82x = 223,704.14 × 90,486.30
  4. Step 4: Simplify right side
    162,107.82x = 20,242,159,923.28
  5. Step 5: Solve for x
    x = 20,242,159,923.28/162,107.82
  6. Step 6: Final answer
    x = 124,868.50

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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.