Home / 152,007.10-209,930.96-115,636.68

Finding the Fourth Proportional to 152,007.10, 209,930.96 and 115,636.68

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Solution

The fourth proportional to 152,007.10, 209,930.96 and 115,636.68 is: 159,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,007.10 : 209,930.96 = 115,636.68 : x
  2. Step 2: Convert to fraction form
    152,007.10/209,930.96 = 115,636.68/x
  3. Step 3: Cross multiply
    152,007.10x = 209,930.96 × 115,636.68
  4. Step 4: Simplify right side
    152,007.10x = 24,275,719,532.70
  5. Step 5: Solve for x
    x = 24,275,719,532.70/152,007.10
  6. Step 6: Final answer
    x = 159,701.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.