Home / 115,306.05-172,884.54-45,192.45

Finding the Fourth Proportional to 115,306.05, 172,884.54 and 45,192.45

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Solution

The fourth proportional to 115,306.05, 172,884.54 and 45,192.45 is: 67,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,306.05 : 172,884.54 = 45,192.45 : x
  2. Step 2: Convert to fraction form
    115,306.05/172,884.54 = 45,192.45/x
  3. Step 3: Cross multiply
    115,306.05x = 172,884.54 × 45,192.45
  4. Step 4: Simplify right side
    115,306.05x = 7,813,075,929.72
  5. Step 5: Solve for x
    x = 7,813,075,929.72/115,306.05
  6. Step 6: Final answer
    x = 67,759.46

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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.