Home / 148,684.04-205,178.47-80,699.55

Finding the Fourth Proportional to 148,684.04, 205,178.47 and 80,699.55

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Solution

The fourth proportional to 148,684.04, 205,178.47 and 80,699.55 is: 111,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,684.04 : 205,178.47 = 80,699.55 : x
  2. Step 2: Convert to fraction form
    148,684.04/205,178.47 = 80,699.55/x
  3. Step 3: Cross multiply
    148,684.04x = 205,178.47 × 80,699.55
  4. Step 4: Simplify right side
    148,684.04x = 16,557,810,198.69
  5. Step 5: Solve for x
    x = 16,557,810,198.69/148,684.04
  6. Step 6: Final answer
    x = 111,362.39

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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.