Home / 105,281.36-145,314.09-59,986.07

Finding the Fourth Proportional to 105,281.36, 145,314.09 and 59,986.07

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Solution

The fourth proportional to 105,281.36, 145,314.09 and 59,986.07 is: 82,795.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,281.36 : 145,314.09 = 59,986.07 : x
  2. Step 2: Convert to fraction form
    105,281.36/145,314.09 = 59,986.07/x
  3. Step 3: Cross multiply
    105,281.36x = 145,314.09 × 59,986.07
  4. Step 4: Simplify right side
    105,281.36x = 8,716,821,174.73
  5. Step 5: Solve for x
    x = 8,716,821,174.73/105,281.36
  6. Step 6: Final answer
    x = 82,795.48

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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.