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Finding the Fourth Proportional to 162,090.45, 223,685.08 and 90,470.45

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Solution

The fourth proportional to 162,090.45, 223,685.08 and 90,470.45 is: 124,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,090.45 : 223,685.08 = 90,470.45 : x
  2. Step 2: Convert to fraction form
    162,090.45/223,685.08 = 90,470.45/x
  3. Step 3: Cross multiply
    162,090.45x = 223,685.08 × 90,470.45
  4. Step 4: Simplify right side
    162,090.45x = 20,236,890,178.92
  5. Step 5: Solve for x
    x = 20,236,890,178.92/162,090.45
  6. Step 6: Final answer
    x = 124,849.37

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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.