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Finding the Fourth Proportional to 162,285.76, 223,958.91 and 90,673.66

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Solution

The fourth proportional to 162,285.76, 223,958.91 and 90,673.66 is: 125,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,285.76 : 223,958.91 = 90,673.66 : x
  2. Step 2: Convert to fraction form
    162,285.76/223,958.91 = 90,673.66/x
  3. Step 3: Cross multiply
    162,285.76x = 223,958.91 × 90,673.66
  4. Step 4: Simplify right side
    162,285.76x = 20,307,173,839.44
  5. Step 5: Solve for x
    x = 20,307,173,839.44/162,285.76
  6. Step 6: Final answer
    x = 125,132.20

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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.