Home / 205,123.20-307,684.80-94,531.20

Finding the Fourth Proportional to 205,123.20, 307,684.80 and 94,531.20

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Solution

The fourth proportional to 205,123.20, 307,684.80 and 94,531.20 is: 141,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,123.20 : 307,684.80 = 94,531.20 : x
  2. Step 2: Convert to fraction form
    205,123.20/307,684.80 = 94,531.20/x
  3. Step 3: Cross multiply
    205,123.20x = 307,684.80 × 94,531.20
  4. Step 4: Simplify right side
    205,123.20x = 29,085,813,365.76
  5. Step 5: Solve for x
    x = 29,085,813,365.76/205,123.20
  6. Step 6: Final answer
    x = 141,796.80

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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.