Home / 236,500.92-326,328.30-139,720.53

Finding the Fourth Proportional to 236,500.92, 326,328.30 and 139,720.53

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Solution

The fourth proportional to 236,500.92, 326,328.30 and 139,720.53 is: 192,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,500.92 : 326,328.30 = 139,720.53 : x
  2. Step 2: Convert to fraction form
    236,500.92/326,328.30 = 139,720.53/x
  3. Step 3: Cross multiply
    236,500.92x = 326,328.30 × 139,720.53
  4. Step 4: Simplify right side
    236,500.92x = 45,594,763,321.87
  5. Step 5: Solve for x
    x = 45,594,763,321.87/236,500.92
  6. Step 6: Final answer
    x = 192,788.95

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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.