Home / 219,152.16-328,601.44-85,876.36

Finding the Fourth Proportional to 219,152.16, 328,601.44 and 85,876.36

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Solution

The fourth proportional to 219,152.16, 328,601.44 and 85,876.36 is: 128,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,152.16 : 328,601.44 = 85,876.36 : x
  2. Step 2: Convert to fraction form
    219,152.16/328,601.44 = 85,876.36/x
  3. Step 3: Cross multiply
    219,152.16x = 328,601.44 × 85,876.36
  4. Step 4: Simplify right side
    219,152.16x = 28,219,095,557.96
  5. Step 5: Solve for x
    x = 28,219,095,557.96/219,152.16
  6. Step 6: Final answer
    x = 128,764.85

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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.