Home / 126,635.48-189,858.84-42,345.80

Finding the Fourth Proportional to 126,635.48, 189,858.84 and 42,345.80

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Solution

The fourth proportional to 126,635.48, 189,858.84 and 42,345.80 is: 63,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,635.48 : 189,858.84 = 42,345.80 : x
  2. Step 2: Convert to fraction form
    126,635.48/189,858.84 = 42,345.80/x
  3. Step 3: Cross multiply
    126,635.48x = 189,858.84 × 42,345.80
  4. Step 4: Simplify right side
    126,635.48x = 8,039,724,466.87
  5. Step 5: Solve for x
    x = 8,039,724,466.87/126,635.48
  6. Step 6: Final answer
    x = 63,487.14

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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.