Home / 219,020.64-328,533.60-85,963.56

Finding the Fourth Proportional to 219,020.64, 328,533.60 and 85,963.56

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Solution

The fourth proportional to 219,020.64, 328,533.60 and 85,963.56 is: 128,946.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,020.64 : 328,533.60 = 85,963.56 : x
  2. Step 2: Convert to fraction form
    219,020.64/328,533.60 = 85,963.56/x
  3. Step 3: Cross multiply
    219,020.64x = 328,533.60 × 85,963.56
  4. Step 4: Simplify right side
    219,020.64x = 28,241,917,835.62
  5. Step 5: Solve for x
    x = 28,241,917,835.62/219,020.64
  6. Step 6: Final answer
    x = 128,946.38

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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.