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Finding the Fourth Proportional to 162,234.16, 223,880.80 and 90,615.20

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Solution

The fourth proportional to 162,234.16, 223,880.80 and 90,615.20 is: 125,047.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,234.16 : 223,880.80 = 90,615.20 : x
  2. Step 2: Convert to fraction form
    162,234.16/223,880.80 = 90,615.20/x
  3. Step 3: Cross multiply
    162,234.16x = 223,880.80 × 90,615.20
  4. Step 4: Simplify right side
    162,234.16x = 20,287,003,468.16
  5. Step 5: Solve for x
    x = 20,287,003,468.16/162,234.16
  6. Step 6: Final answer
    x = 125,047.67

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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.