Home / 144,334.34-216,697.85-81,198.90

Finding the Fourth Proportional to 144,334.34, 216,697.85 and 81,198.90

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Solution

The fourth proportional to 144,334.34, 216,697.85 and 81,198.90 is: 121,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,334.34 : 216,697.85 = 81,198.90 : x
  2. Step 2: Convert to fraction form
    144,334.34/216,697.85 = 81,198.90/x
  3. Step 3: Cross multiply
    144,334.34x = 216,697.85 × 81,198.90
  4. Step 4: Simplify right side
    144,334.34x = 17,595,626,646.37
  5. Step 5: Solve for x
    x = 17,595,626,646.37/144,334.34
  6. Step 6: Final answer
    x = 121,908.81

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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.