Home / 148,683.84-205,179.12-80,697.60

Finding the Fourth Proportional to 148,683.84, 205,179.12 and 80,697.60

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Solution

The fourth proportional to 148,683.84, 205,179.12 and 80,697.60 is: 111,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,683.84 : 205,179.12 = 80,697.60 : x
  2. Step 2: Convert to fraction form
    148,683.84/205,179.12 = 80,697.60/x
  3. Step 3: Cross multiply
    148,683.84x = 205,179.12 × 80,697.60
  4. Step 4: Simplify right side
    148,683.84x = 16,557,462,554.11
  5. Step 5: Solve for x
    x = 16,557,462,554.11/148,683.84
  6. Step 6: Final answer
    x = 111,360.20

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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.