Home / 155,071.98-214,004.49-87,100.94

Finding the Fourth Proportional to 155,071.98, 214,004.49 and 87,100.94

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Solution

The fourth proportional to 155,071.98, 214,004.49 and 87,100.94 is: 120,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,071.98 : 214,004.49 = 87,100.94 : x
  2. Step 2: Convert to fraction form
    155,071.98/214,004.49 = 87,100.94/x
  3. Step 3: Cross multiply
    155,071.98x = 214,004.49 × 87,100.94
  4. Step 4: Simplify right side
    155,071.98x = 18,639,992,243.22
  5. Step 5: Solve for x
    x = 18,639,992,243.22/155,071.98
  6. Step 6: Final answer
    x = 120,202.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.