Home / 162,034.42-243,107.55-67,315.48

Finding the Fourth Proportional to 162,034.42, 243,107.55 and 67,315.48

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Solution

The fourth proportional to 162,034.42, 243,107.55 and 67,315.48 is: 100,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,034.42 : 243,107.55 = 67,315.48 : x
  2. Step 2: Convert to fraction form
    162,034.42/243,107.55 = 67,315.48/x
  3. Step 3: Cross multiply
    162,034.42x = 243,107.55 × 67,315.48
  4. Step 4: Simplify right side
    162,034.42x = 16,364,901,419.87
  5. Step 5: Solve for x
    x = 16,364,901,419.87/162,034.42
  6. Step 6: Final answer
    x = 100,996.45

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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.