Home / 115,021.04-172,662.84-77,098.52

Finding the Fourth Proportional to 115,021.04, 172,662.84 and 77,098.52

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Solution

The fourth proportional to 115,021.04, 172,662.84 and 77,098.52 is: 115,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,021.04 : 172,662.84 = 77,098.52 : x
  2. Step 2: Convert to fraction form
    115,021.04/172,662.84 = 77,098.52/x
  3. Step 3: Cross multiply
    115,021.04x = 172,662.84 × 77,098.52
  4. Step 4: Simplify right side
    115,021.04x = 13,312,049,423.00
  5. Step 5: Solve for x
    x = 13,312,049,423.00/115,021.04
  6. Step 6: Final answer
    x = 115,735.78

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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.