Home / 105,526.23-145,620.57-57,770.37

Finding the Fourth Proportional to 105,526.23, 145,620.57 and 57,770.37

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Solution

The fourth proportional to 105,526.23, 145,620.57 and 57,770.37 is: 79,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,526.23 : 145,620.57 = 57,770.37 : x
  2. Step 2: Convert to fraction form
    105,526.23/145,620.57 = 57,770.37/x
  3. Step 3: Cross multiply
    105,526.23x = 145,620.57 × 57,770.37
  4. Step 4: Simplify right side
    105,526.23x = 8,412,554,208.51
  5. Step 5: Solve for x
    x = 8,412,554,208.51/105,526.23
  6. Step 6: Final answer
    x = 79,720.03

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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.