Home / 205,241.34-307,908.18-72,130.80

Finding the Fourth Proportional to 205,241.34, 307,908.18 and 72,130.80

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Solution

The fourth proportional to 205,241.34, 307,908.18 and 72,130.80 is: 108,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,241.34 : 307,908.18 = 72,130.80 : x
  2. Step 2: Convert to fraction form
    205,241.34/307,908.18 = 72,130.80/x
  3. Step 3: Cross multiply
    205,241.34x = 307,908.18 × 72,130.80
  4. Step 4: Simplify right side
    205,241.34x = 22,209,663,349.94
  5. Step 5: Solve for x
    x = 22,209,663,349.94/205,241.34
  6. Step 6: Final answer
    x = 108,212.43

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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.