Home / 151,224.80-208,713.12-90,828.64

Finding the Fourth Proportional to 151,224.80, 208,713.12 and 90,828.64

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Solution

The fourth proportional to 151,224.80, 208,713.12 and 90,828.64 is: 125,357.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,224.80 : 208,713.12 = 90,828.64 : x
  2. Step 2: Convert to fraction form
    151,224.80/208,713.12 = 90,828.64/x
  3. Step 3: Cross multiply
    151,224.80x = 208,713.12 × 90,828.64
  4. Step 4: Simplify right side
    151,224.80x = 18,957,128,839.76
  5. Step 5: Solve for x
    x = 18,957,128,839.76/151,224.80
  6. Step 6: Final answer
    x = 125,357.27

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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.