Home / 119,205.76-178,831.68-45,328

Finding the Fourth Proportional to 119,205.76, 178,831.68 and 45,328

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Solution

The fourth proportional to 119,205.76, 178,831.68 and 45,328 is: 68,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,205.76 : 178,831.68 = 45,328 : x
  2. Step 2: Convert to fraction form
    119,205.76/178,831.68 = 45,328/x
  3. Step 3: Cross multiply
    119,205.76x = 178,831.68 × 45,328
  4. Step 4: Simplify right side
    119,205.76x = 8,106,082,391.04
  5. Step 5: Solve for x
    x = 8,106,082,391.04/119,205.76
  6. Step 6: Final answer
    x = 68,000.76

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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.