Home / 209,047.52-288,605.25-137,635.13

Finding the Fourth Proportional to 209,047.52, 288,605.25 and 137,635.13

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Solution

The fourth proportional to 209,047.52, 288,605.25 and 137,635.13 is: 190,015.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,047.52 : 288,605.25 = 137,635.13 : x
  2. Step 2: Convert to fraction form
    209,047.52/288,605.25 = 137,635.13/x
  3. Step 3: Cross multiply
    209,047.52x = 288,605.25 × 137,635.13
  4. Step 4: Simplify right side
    209,047.52x = 39,722,219,659.41
  5. Step 5: Solve for x
    x = 39,722,219,659.41/209,047.52
  6. Step 6: Final answer
    x = 190,015.27

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1.5x scale

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.