Home / 191,260.12-263,928.53-105,205.21

Finding the Fourth Proportional to 191,260.12, 263,928.53 and 105,205.21

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Solution

The fourth proportional to 191,260.12, 263,928.53 and 105,205.21 is: 145,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,260.12 : 263,928.53 = 105,205.21 : x
  2. Step 2: Convert to fraction form
    191,260.12/263,928.53 = 105,205.21/x
  3. Step 3: Cross multiply
    191,260.12x = 263,928.53 × 105,205.21
  4. Step 4: Simplify right side
    191,260.12x = 27,766,656,423.64
  5. Step 5: Solve for x
    x = 27,766,656,423.64/191,260.12
  6. Step 6: Final answer
    x = 145,177.45

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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.