Home / 120,356.01-180,542.21-31,609.36

Finding the Fourth Proportional to 120,356.01, 180,542.21 and 31,609.36

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Solution

The fourth proportional to 120,356.01, 180,542.21 and 31,609.36 is: 47,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,356.01 : 180,542.21 = 31,609.36 : x
  2. Step 2: Convert to fraction form
    120,356.01/180,542.21 = 31,609.36/x
  3. Step 3: Cross multiply
    120,356.01x = 180,542.21 × 31,609.36
  4. Step 4: Simplify right side
    120,356.01x = 5,706,823,711.09
  5. Step 5: Solve for x
    x = 5,706,823,711.09/120,356.01
  6. Step 6: Final answer
    x = 47,416.19

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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.