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Finding the Fourth Proportional to 162,314.91, 223,990.37 and 90,695.52

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Solution

The fourth proportional to 162,314.91, 223,990.37 and 90,695.52 is: 125,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,314.91 : 223,990.37 = 90,695.52 : x
  2. Step 2: Convert to fraction form
    162,314.91/223,990.37 = 90,695.52/x
  3. Step 3: Cross multiply
    162,314.91x = 223,990.37 × 90,695.52
  4. Step 4: Simplify right side
    162,314.91x = 20,314,923,082.14
  5. Step 5: Solve for x
    x = 20,314,923,082.14/162,314.91
  6. Step 6: Final answer
    x = 125,157.47

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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.