Home / 171,391.16-257,139.24-76,701.02

Finding the Fourth Proportional to 171,391.16, 257,139.24 and 76,701.02

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Solution

The fourth proportional to 171,391.16, 257,139.24 and 76,701.02 is: 115,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,391.16 : 257,139.24 = 76,701.02 : x
  2. Step 2: Convert to fraction form
    171,391.16/257,139.24 = 76,701.02/x
  3. Step 3: Cross multiply
    171,391.16x = 257,139.24 × 76,701.02
  4. Step 4: Simplify right side
    171,391.16x = 19,722,841,990.02
  5. Step 5: Solve for x
    x = 19,722,841,990.02/171,391.16
  6. Step 6: Final answer
    x = 115,075.02

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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.