Home / 155,554.96-214,653.52-91,880.88

Finding the Fourth Proportional to 155,554.96, 214,653.52 and 91,880.88

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Solution

The fourth proportional to 155,554.96, 214,653.52 and 91,880.88 is: 126,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,554.96 : 214,653.52 = 91,880.88 : x
  2. Step 2: Convert to fraction form
    155,554.96/214,653.52 = 91,880.88/x
  3. Step 3: Cross multiply
    155,554.96x = 214,653.52 × 91,880.88
  4. Step 4: Simplify right side
    155,554.96x = 19,722,554,312.70
  5. Step 5: Solve for x
    x = 19,722,554,312.70/155,554.96
  6. Step 6: Final answer
    x = 126,788.33

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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.