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Finding the Fourth Proportional to 162,340.54, 224,029.29 and 90,720.54

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Solution

The fourth proportional to 162,340.54, 224,029.29 and 90,720.54 is: 125,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,340.54 : 224,029.29 = 90,720.54 : x
  2. Step 2: Convert to fraction form
    162,340.54/224,029.29 = 90,720.54/x
  3. Step 3: Cross multiply
    162,340.54x = 224,029.29 × 90,720.54
  4. Step 4: Simplify right side
    162,340.54x = 20,324,058,504.82
  5. Step 5: Solve for x
    x = 20,324,058,504.82/162,340.54
  6. Step 6: Final answer
    x = 125,193.98

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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.