Home / 272,121.53-408,186.48-103,651.25

Finding the Fourth Proportional to 272,121.53, 408,186.48 and 103,651.25

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Solution

The fourth proportional to 272,121.53, 408,186.48 and 103,651.25 is: 155,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,121.53 : 408,186.48 = 103,651.25 : x
  2. Step 2: Convert to fraction form
    272,121.53/408,186.48 = 103,651.25/x
  3. Step 3: Cross multiply
    272,121.53x = 408,186.48 × 103,651.25
  4. Step 4: Simplify right side
    272,121.53x = 42,309,038,885.10
  5. Step 5: Solve for x
    x = 42,309,038,885.10/272,121.53
  6. Step 6: Final answer
    x = 155,478.47

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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.