Home / 120,582.99-180,871.74-31,842.72

Finding the Fourth Proportional to 120,582.99, 180,871.74 and 31,842.72

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Solution

The fourth proportional to 120,582.99, 180,871.74 and 31,842.72 is: 47,763.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,582.99 : 180,871.74 = 31,842.72 : x
  2. Step 2: Convert to fraction form
    120,582.99/180,871.74 = 31,842.72/x
  3. Step 3: Cross multiply
    120,582.99x = 180,871.74 × 31,842.72
  4. Step 4: Simplify right side
    120,582.99x = 5,759,448,172.73
  5. Step 5: Solve for x
    x = 5,759,448,172.73/120,582.99
  6. Step 6: Final answer
    x = 47,763.36

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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.