Home / 213,153.26-294,110.60-128,275.79

Finding the Fourth Proportional to 213,153.26, 294,110.60 and 128,275.79

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Solution

The fourth proportional to 213,153.26, 294,110.60 and 128,275.79 is: 176,995.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,153.26 : 294,110.60 = 128,275.79 : x
  2. Step 2: Convert to fraction form
    213,153.26/294,110.60 = 128,275.79/x
  3. Step 3: Cross multiply
    213,153.26x = 294,110.60 × 128,275.79
  4. Step 4: Simplify right side
    213,153.26x = 37,727,267,450.44
  5. Step 5: Solve for x
    x = 37,727,267,450.44/213,153.26
  6. Step 6: Final answer
    x = 176,995.97

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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.