Home / 219,802.46-329,479.50-86,628.74

Finding the Fourth Proportional to 219,802.46, 329,479.50 and 86,628.74

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Solution

The fourth proportional to 219,802.46, 329,479.50 and 86,628.74 is: 129,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,802.46 : 329,479.50 = 86,628.74 : x
  2. Step 2: Convert to fraction form
    219,802.46/329,479.50 = 86,628.74/x
  3. Step 3: Cross multiply
    219,802.46x = 329,479.50 × 86,628.74
  4. Step 4: Simplify right side
    219,802.46x = 28,542,393,940.83
  5. Step 5: Solve for x
    x = 28,542,393,940.83/219,802.46
  6. Step 6: Final answer
    x = 129,854.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.