Home / 203,430.06-280,653.39-126,904.50

Finding the Fourth Proportional to 203,430.06, 280,653.39 and 126,904.50

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Solution

The fourth proportional to 203,430.06, 280,653.39 and 126,904.50 is: 175,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,430.06 : 280,653.39 = 126,904.50 : x
  2. Step 2: Convert to fraction form
    203,430.06/280,653.39 = 126,904.50/x
  3. Step 3: Cross multiply
    203,430.06x = 280,653.39 × 126,904.50
  4. Step 4: Simplify right side
    203,430.06x = 35,616,178,131.26
  5. Step 5: Solve for x
    x = 35,616,178,131.26/203,430.06
  6. Step 6: Final answer
    x = 175,078.25

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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.