Home / 209,200.95-313,801.43-125,220.15

Finding the Fourth Proportional to 209,200.95, 313,801.43 and 125,220.15

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Solution

The fourth proportional to 209,200.95, 313,801.43 and 125,220.15 is: 187,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,200.95 : 313,801.43 = 125,220.15 : x
  2. Step 2: Convert to fraction form
    209,200.95/313,801.43 = 125,220.15/x
  3. Step 3: Cross multiply
    209,200.95x = 313,801.43 × 125,220.15
  4. Step 4: Simplify right side
    209,200.95x = 39,294,261,508.71
  5. Step 5: Solve for x
    x = 39,294,261,508.71/209,200.95
  6. Step 6: Final answer
    x = 187,830.23

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1.5x scale

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.