Home / 219,259.45-328,888.67-86,046.55

Finding the Fourth Proportional to 219,259.45, 328,888.67 and 86,046.55

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Solution

The fourth proportional to 219,259.45, 328,888.67 and 86,046.55 is: 129,069.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,259.45 : 328,888.67 = 86,046.55 : x
  2. Step 2: Convert to fraction form
    219,259.45/328,888.67 = 86,046.55/x
  3. Step 3: Cross multiply
    219,259.45x = 328,888.67 × 86,046.55
  4. Step 4: Simplify right side
    219,259.45x = 28,299,735,387.59
  5. Step 5: Solve for x
    x = 28,299,735,387.59/219,259.45
  6. Step 6: Final answer
    x = 129,069.63

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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.