Home / 209,572.09-314,358.23-69,330.71

Finding the Fourth Proportional to 209,572.09, 314,358.23 and 69,330.71

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Solution

The fourth proportional to 209,572.09, 314,358.23 and 69,330.71 is: 103,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,572.09 : 314,358.23 = 69,330.71 : x
  2. Step 2: Convert to fraction form
    209,572.09/314,358.23 = 69,330.71/x
  3. Step 3: Cross multiply
    209,572.09x = 314,358.23 × 69,330.71
  4. Step 4: Simplify right side
    209,572.09x = 21,794,679,280.24
  5. Step 5: Solve for x
    x = 21,794,679,280.24/209,572.09
  6. Step 6: Final answer
    x = 103,996.10

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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.