Home / 162,000.20-243,000.30-102,902.60

Finding the Fourth Proportional to 162,000.20, 243,000.30 and 102,902.60

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Solution

The fourth proportional to 162,000.20, 243,000.30 and 102,902.60 is: 154,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,000.20 : 243,000.30 = 102,902.60 : x
  2. Step 2: Convert to fraction form
    162,000.20/243,000.30 = 102,902.60/x
  3. Step 3: Cross multiply
    162,000.20x = 243,000.30 × 102,902.60
  4. Step 4: Simplify right side
    162,000.20x = 25,005,362,670.78
  5. Step 5: Solve for x
    x = 25,005,362,670.78/162,000.20
  6. Step 6: Final answer
    x = 154,353.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.