Home / 219,594.16-303,042.30-128,951.20

Finding the Fourth Proportional to 219,594.16, 303,042.30 and 128,951.20

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Solution

The fourth proportional to 219,594.16, 303,042.30 and 128,951.20 is: 177,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,594.16 : 303,042.30 = 128,951.20 : x
  2. Step 2: Convert to fraction form
    219,594.16/303,042.30 = 128,951.20/x
  3. Step 3: Cross multiply
    219,594.16x = 303,042.30 × 128,951.20
  4. Step 4: Simplify right side
    219,594.16x = 39,077,668,235.76
  5. Step 5: Solve for x
    x = 39,077,668,235.76/219,594.16
  6. Step 6: Final answer
    x = 177,954.04

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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.