Home / 118,210.20-177,315.30-48,139.80

Finding the Fourth Proportional to 118,210.20, 177,315.30 and 48,139.80

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Solution

The fourth proportional to 118,210.20, 177,315.30 and 48,139.80 is: 72,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,210.20 : 177,315.30 = 48,139.80 : x
  2. Step 2: Convert to fraction form
    118,210.20/177,315.30 = 48,139.80/x
  3. Step 3: Cross multiply
    118,210.20x = 177,315.30 × 48,139.80
  4. Step 4: Simplify right side
    118,210.20x = 8,535,923,078.94
  5. Step 5: Solve for x
    x = 8,535,923,078.94/118,210.20
  6. Step 6: Final answer
    x = 72,209.70

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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.