Home / 209,930.26-314,862.93-76,779.38

Finding the Fourth Proportional to 209,930.26, 314,862.93 and 76,779.38

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Solution

The fourth proportional to 209,930.26, 314,862.93 and 76,779.38 is: 115,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,930.26 : 314,862.93 = 76,779.38 : x
  2. Step 2: Convert to fraction form
    209,930.26/314,862.93 = 76,779.38/x
  3. Step 3: Cross multiply
    209,930.26x = 314,862.93 × 76,779.38
  4. Step 4: Simplify right side
    209,930.26x = 24,174,980,550.38
  5. Step 5: Solve for x
    x = 24,174,980,550.38/209,930.26
  6. Step 6: Final answer
    x = 115,157.20

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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.