Home / 209,045.20-313,567.80-61,301.20

Finding the Fourth Proportional to 209,045.20, 313,567.80 and 61,301.20

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Solution

The fourth proportional to 209,045.20, 313,567.80 and 61,301.20 is: 91,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,045.20 : 313,567.80 = 61,301.20 : x
  2. Step 2: Convert to fraction form
    209,045.20/313,567.80 = 61,301.20/x
  3. Step 3: Cross multiply
    209,045.20x = 313,567.80 × 61,301.20
  4. Step 4: Simplify right side
    209,045.20x = 19,222,082,421.36
  5. Step 5: Solve for x
    x = 19,222,082,421.36/209,045.20
  6. Step 6: Final answer
    x = 91,951.80

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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.