Home / 148,646.80-205,131.54-80,662.04

Finding the Fourth Proportional to 148,646.80, 205,131.54 and 80,662.04

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Solution

The fourth proportional to 148,646.80, 205,131.54 and 80,662.04 is: 111,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,646.80 : 205,131.54 = 80,662.04 : x
  2. Step 2: Convert to fraction form
    148,646.80/205,131.54 = 80,662.04/x
  3. Step 3: Cross multiply
    148,646.80x = 205,131.54 × 80,662.04
  4. Step 4: Simplify right side
    148,646.80x = 16,546,328,484.74
  5. Step 5: Solve for x
    x = 16,546,328,484.74/148,646.80
  6. Step 6: Final answer
    x = 111,313.05

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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.