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Finding the Fourth Proportional to 162,451.70, 224,181.81 and 90,830.90

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Solution

The fourth proportional to 162,451.70, 224,181.81 and 90,830.90 is: 125,345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,451.70 : 224,181.81 = 90,830.90 : x
  2. Step 2: Convert to fraction form
    162,451.70/224,181.81 = 90,830.90/x
  3. Step 3: Cross multiply
    162,451.70x = 224,181.81 × 90,830.90
  4. Step 4: Simplify right side
    162,451.70x = 20,362,635,565.93
  5. Step 5: Solve for x
    x = 20,362,635,565.93/162,451.70
  6. Step 6: Final answer
    x = 125,345.78

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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.