Home / 162,181.80-243,333.18-99,131.40

Finding the Fourth Proportional to 162,181.80, 243,333.18 and 99,131.40

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Solution

The fourth proportional to 162,181.80, 243,333.18 and 99,131.40 is: 148,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,181.80 : 243,333.18 = 99,131.40 : x
  2. Step 2: Convert to fraction form
    162,181.80/243,333.18 = 99,131.40/x
  3. Step 3: Cross multiply
    162,181.80x = 243,333.18 × 99,131.40
  4. Step 4: Simplify right side
    162,181.80x = 24,121,958,799.85
  5. Step 5: Solve for x
    x = 24,121,958,799.85/162,181.80
  6. Step 6: Final answer
    x = 148,734.07

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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.