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Finding the Fourth Proportional to 162,064.12, 223,648.02 and 90,443.32

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Solution

The fourth proportional to 162,064.12, 223,648.02 and 90,443.32 is: 124,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,064.12 : 223,648.02 = 90,443.32 : x
  2. Step 2: Convert to fraction form
    162,064.12/223,648.02 = 90,443.32/x
  3. Step 3: Cross multiply
    162,064.12x = 223,648.02 × 90,443.32
  4. Step 4: Simplify right side
    162,064.12x = 20,227,469,440.23
  5. Step 5: Solve for x
    x = 20,227,469,440.23/162,064.12
  6. Step 6: Final answer
    x = 124,811.52

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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.