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Finding the Fourth Proportional to 70,134.35, 105,357.22 and 43,500.03

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Solution

The fourth proportional to 70,134.35, 105,357.22 and 43,500.03 is: 65,346.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,134.35 : 105,357.22 = 43,500.03 : x
  2. Step 2: Convert to fraction form
    70,134.35/105,357.22 = 43,500.03/x
  3. Step 3: Cross multiply
    70,134.35x = 105,357.22 × 43,500.03
  4. Step 4: Simplify right side
    70,134.35x = 4,583,041,595.18
  5. Step 5: Solve for x
    x = 4,583,041,595.18/70,134.35
  6. Step 6: Final answer
    x = 65,346.61

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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.