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Finding the Fourth Proportional to 162,138.44, 223,687.50 and 94,143.80

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Solution

The fourth proportional to 162,138.44, 223,687.50 and 94,143.80 is: 129,881.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,138.44 : 223,687.50 = 94,143.80 : x
  2. Step 2: Convert to fraction form
    162,138.44/223,687.50 = 94,143.80/x
  3. Step 3: Cross multiply
    162,138.44x = 223,687.50 × 94,143.80
  4. Step 4: Simplify right side
    162,138.44x = 21,058,791,262.50
  5. Step 5: Solve for x
    x = 21,058,791,262.50/162,138.44
  6. Step 6: Final answer
    x = 129,881.55

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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.