Home / 127,075.23-175,371.09-76,790.43

Finding the Fourth Proportional to 127,075.23, 175,371.09 and 76,790.43

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Solution

The fourth proportional to 127,075.23, 175,371.09 and 76,790.43 is: 105,975.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,075.23 : 175,371.09 = 76,790.43 : x
  2. Step 2: Convert to fraction form
    127,075.23/175,371.09 = 76,790.43/x
  3. Step 3: Cross multiply
    127,075.23x = 175,371.09 × 76,790.43
  4. Step 4: Simplify right side
    127,075.23x = 13,466,821,410.67
  5. Step 5: Solve for x
    x = 13,466,821,410.67/127,075.23
  6. Step 6: Final answer
    x = 105,975.19

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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.