Home / 76,157.90-105,099.93-42,169.37

Finding the Fourth Proportional to 76,157.90, 105,099.93 and 42,169.37

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Solution

The fourth proportional to 76,157.90, 105,099.93 and 42,169.37 is: 58,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,157.90 : 105,099.93 = 42,169.37 : x
  2. Step 2: Convert to fraction form
    76,157.90/105,099.93 = 42,169.37/x
  3. Step 3: Cross multiply
    76,157.90x = 105,099.93 × 42,169.37
  4. Step 4: Simplify right side
    76,157.90x = 4,431,997,605.24
  5. Step 5: Solve for x
    x = 4,431,997,605.24/76,157.90
  6. Step 6: Final answer
    x = 58,194.85

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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.