Home / 209,813.91-314,995.23-124,580.40

Finding the Fourth Proportional to 209,813.91, 314,995.23 and 124,580.40

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Solution

The fourth proportional to 209,813.91, 314,995.23 and 124,580.40 is: 187,033.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,813.91 : 314,995.23 = 124,580.40 : x
  2. Step 2: Convert to fraction form
    209,813.91/314,995.23 = 124,580.40/x
  3. Step 3: Cross multiply
    209,813.91x = 314,995.23 × 124,580.40
  4. Step 4: Simplify right side
    209,813.91x = 39,242,231,751.49
  5. Step 5: Solve for x
    x = 39,242,231,751.49/209,813.91
  6. Step 6: Final answer
    x = 187,033.51

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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.