Home / 219,712.50-303,235.61-139,147.52

Finding the Fourth Proportional to 219,712.50, 303,235.61 and 139,147.52

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Solution

The fourth proportional to 219,712.50, 303,235.61 and 139,147.52 is: 192,044.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,712.50 : 303,235.61 = 139,147.52 : x
  2. Step 2: Convert to fraction form
    219,712.50/303,235.61 = 139,147.52/x
  3. Step 3: Cross multiply
    219,712.50x = 303,235.61 × 139,147.52
  4. Step 4: Simplify right side
    219,712.50x = 42,194,480,895.27
  5. Step 5: Solve for x
    x = 42,194,480,895.27/219,712.50
  6. Step 6: Final answer
    x = 192,044.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.