Home / 208,997.57-288,536.20-137,585.18

Finding the Fourth Proportional to 208,997.57, 288,536.20 and 137,585.18

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Solution

The fourth proportional to 208,997.57, 288,536.20 and 137,585.18 is: 189,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,997.57 : 288,536.20 = 137,585.18 : x
  2. Step 2: Convert to fraction form
    208,997.57/288,536.20 = 137,585.18/x
  3. Step 3: Cross multiply
    208,997.57x = 288,536.20 × 137,585.18
  4. Step 4: Simplify right side
    208,997.57x = 39,698,305,013.52
  5. Step 5: Solve for x
    x = 39,698,305,013.52/208,997.57
  6. Step 6: Final answer
    x = 189,946.25

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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.