Home / 219,032.38-328,548.57-85,975.30

Finding the Fourth Proportional to 219,032.38, 328,548.57 and 85,975.30

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Solution

The fourth proportional to 219,032.38, 328,548.57 and 85,975.30 is: 128,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,032.38 : 328,548.57 = 85,975.30 : x
  2. Step 2: Convert to fraction form
    219,032.38/328,548.57 = 85,975.30/x
  3. Step 3: Cross multiply
    219,032.38x = 328,548.57 × 85,975.30
  4. Step 4: Simplify right side
    219,032.38x = 28,247,061,870.32
  5. Step 5: Solve for x
    x = 28,247,061,870.32/219,032.38
  6. Step 6: Final answer
    x = 128,962.95

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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.