Home / 272,125.12-408,187.14-72,445.54

Finding the Fourth Proportional to 272,125.12, 408,187.14 and 72,445.54

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Solution

The fourth proportional to 272,125.12, 408,187.14 and 72,445.54 is: 108,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,125.12 : 408,187.14 = 72,445.54 : x
  2. Step 2: Convert to fraction form
    272,125.12/408,187.14 = 72,445.54/x
  3. Step 3: Cross multiply
    272,125.12x = 408,187.14 × 72,445.54
  4. Step 4: Simplify right side
    272,125.12x = 29,571,337,778.36
  5. Step 5: Solve for x
    x = 29,571,337,778.36/272,125.12
  6. Step 6: Final answer
    x = 108,668.17

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1.5x scale

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.