Home / 115,250.17-172,772.65-45,178.33

Finding the Fourth Proportional to 115,250.17, 172,772.65 and 45,178.33

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Solution

The fourth proportional to 115,250.17, 172,772.65 and 45,178.33 is: 67,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,250.17 : 172,772.65 = 45,178.33 : x
  2. Step 2: Convert to fraction form
    115,250.17/172,772.65 = 45,178.33/x
  3. Step 3: Cross multiply
    115,250.17x = 172,772.65 × 45,178.33
  4. Step 4: Simplify right side
    115,250.17x = 7,805,579,796.67
  5. Step 5: Solve for x
    x = 7,805,579,796.67/115,250.17
  6. Step 6: Final answer
    x = 67,727.27

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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.