Home / 198,661.04-298,178.83-72,423.30

Finding the Fourth Proportional to 198,661.04, 298,178.83 and 72,423.30

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Solution

The fourth proportional to 198,661.04, 298,178.83 and 72,423.30 is: 108,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,661.04 : 298,178.83 = 72,423.30 : x
  2. Step 2: Convert to fraction form
    198,661.04/298,178.83 = 72,423.30/x
  3. Step 3: Cross multiply
    198,661.04x = 298,178.83 × 72,423.30
  4. Step 4: Simplify right side
    198,661.04x = 21,595,094,858.74
  5. Step 5: Solve for x
    x = 21,595,094,858.74/198,661.04
  6. Step 6: Final answer
    x = 108,703.22

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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.