Home / 219,031.92-328,583.34-85,839.96

Finding the Fourth Proportional to 219,031.92, 328,583.34 and 85,839.96

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Solution

The fourth proportional to 219,031.92, 328,583.34 and 85,839.96 is: 128,773.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,031.92 : 328,583.34 = 85,839.96 : x
  2. Step 2: Convert to fraction form
    219,031.92/328,583.34 = 85,839.96/x
  3. Step 3: Cross multiply
    219,031.92x = 328,583.34 × 85,839.96
  4. Step 4: Simplify right side
    219,031.92x = 28,205,580,762.27
  5. Step 5: Solve for x
    x = 28,205,580,762.27/219,031.92
  6. Step 6: Final answer
    x = 128,773.84

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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.