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Finding the Fourth Proportional to 162,051.68, 223,630.98 and 90,427.43

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Solution

The fourth proportional to 162,051.68, 223,630.98 and 90,427.43 is: 124,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,051.68 : 223,630.98 = 90,427.43 : x
  2. Step 2: Convert to fraction form
    162,051.68/223,630.98 = 90,427.43/x
  3. Step 3: Cross multiply
    162,051.68x = 223,630.98 × 90,427.43
  4. Step 4: Simplify right side
    162,051.68x = 20,222,374,789.78
  5. Step 5: Solve for x
    x = 20,222,374,789.78/162,051.68
  6. Step 6: Final answer
    x = 124,789.66

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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.