Home / 74,571.84-111,726.54-70,132.23

Finding the Fourth Proportional to 74,571.84, 111,726.54 and 70,132.23

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Solution

The fourth proportional to 74,571.84, 111,726.54 and 70,132.23 is: 105,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,571.84 : 111,726.54 = 70,132.23 : x
  2. Step 2: Convert to fraction form
    74,571.84/111,726.54 = 70,132.23/x
  3. Step 3: Cross multiply
    74,571.84x = 111,726.54 × 70,132.23
  4. Step 4: Simplify right side
    74,571.84x = 7,835,631,400.38
  5. Step 5: Solve for x
    x = 7,835,631,400.38/74,571.84
  6. Step 6: Final answer
    x = 105,074.94

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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.