Home / 144,021.24-198,687.60-87,334.20

Finding the Fourth Proportional to 144,021.24, 198,687.60 and 87,334.20

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Solution

The fourth proportional to 144,021.24, 198,687.60 and 87,334.20 is: 120,483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,021.24 : 198,687.60 = 87,334.20 : x
  2. Step 2: Convert to fraction form
    144,021.24/198,687.60 = 87,334.20/x
  3. Step 3: Cross multiply
    144,021.24x = 198,687.60 × 87,334.20
  4. Step 4: Simplify right side
    144,021.24x = 17,352,222,595.92
  5. Step 5: Solve for x
    x = 17,352,222,595.92/144,021.24
  6. Step 6: Final answer
    x = 120,483.77

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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.