Home / 119,828.40-179,742.60-40,930.80

Finding the Fourth Proportional to 119,828.40, 179,742.60 and 40,930.80

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Solution

The fourth proportional to 119,828.40, 179,742.60 and 40,930.80 is: 61,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,828.40 : 179,742.60 = 40,930.80 : x
  2. Step 2: Convert to fraction form
    119,828.40/179,742.60 = 40,930.80/x
  3. Step 3: Cross multiply
    119,828.40x = 179,742.60 × 40,930.80
  4. Step 4: Simplify right side
    119,828.40x = 7,357,008,412.08
  5. Step 5: Solve for x
    x = 7,357,008,412.08/119,828.40
  6. Step 6: Final answer
    x = 61,396.20

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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.