Home / 146,417.80-219,626.70-86,542.60

Finding the Fourth Proportional to 146,417.80, 219,626.70 and 86,542.60

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Solution

The fourth proportional to 146,417.80, 219,626.70 and 86,542.60 is: 129,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,417.80 : 219,626.70 = 86,542.60 : x
  2. Step 2: Convert to fraction form
    146,417.80/219,626.70 = 86,542.60/x
  3. Step 3: Cross multiply
    146,417.80x = 219,626.70 × 86,542.60
  4. Step 4: Simplify right side
    146,417.80x = 19,007,065,647.42
  5. Step 5: Solve for x
    x = 19,007,065,647.42/146,417.80
  6. Step 6: Final answer
    x = 129,813.90

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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.