Home / 202,125.84-279,043.02-121,571.34

Finding the Fourth Proportional to 202,125.84, 279,043.02 and 121,571.34

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Solution

The fourth proportional to 202,125.84, 279,043.02 and 121,571.34 is: 167,834.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,125.84 : 279,043.02 = 121,571.34 : x
  2. Step 2: Convert to fraction form
    202,125.84/279,043.02 = 121,571.34/x
  3. Step 3: Cross multiply
    202,125.84x = 279,043.02 × 121,571.34
  4. Step 4: Simplify right side
    202,125.84x = 33,923,633,859.05
  5. Step 5: Solve for x
    x = 33,923,633,859.05/202,125.84
  6. Step 6: Final answer
    x = 167,834.23

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1.5x scale

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.