Home / 112,403.30-155,114.73-61,414.94

Finding the Fourth Proportional to 112,403.30, 155,114.73 and 61,414.94

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Solution

The fourth proportional to 112,403.30, 155,114.73 and 61,414.94 is: 84,751.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,403.30 : 155,114.73 = 61,414.94 : x
  2. Step 2: Convert to fraction form
    112,403.30/155,114.73 = 61,414.94/x
  3. Step 3: Cross multiply
    112,403.30x = 155,114.73 × 61,414.94
  4. Step 4: Simplify right side
    112,403.30x = 9,526,361,060.49
  5. Step 5: Solve for x
    x = 9,526,361,060.49/112,403.30
  6. Step 6: Final answer
    x = 84,751.62

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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.