Home / 149,206.53-205,908.84-91,824.51

Finding the Fourth Proportional to 149,206.53, 205,908.84 and 91,824.51

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Solution

The fourth proportional to 149,206.53, 205,908.84 and 91,824.51 is: 126,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,206.53 : 205,908.84 = 91,824.51 : x
  2. Step 2: Convert to fraction form
    149,206.53/205,908.84 = 91,824.51/x
  3. Step 3: Cross multiply
    149,206.53x = 205,908.84 × 91,824.51
  4. Step 4: Simplify right side
    149,206.53x = 18,907,478,337.67
  5. Step 5: Solve for x
    x = 18,907,478,337.67/149,206.53
  6. Step 6: Final answer
    x = 126,720.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.