Home / 191,290.65-263,983.11-105,250.76

Finding the Fourth Proportional to 191,290.65, 263,983.11 and 105,250.76

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Solution

The fourth proportional to 191,290.65, 263,983.11 and 105,250.76 is: 145,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,290.65 : 263,983.11 = 105,250.76 : x
  2. Step 2: Convert to fraction form
    191,290.65/263,983.11 = 105,250.76/x
  3. Step 3: Cross multiply
    191,290.65x = 263,983.11 × 105,250.76
  4. Step 4: Simplify right side
    191,290.65x = 27,784,421,634.75
  5. Step 5: Solve for x
    x = 27,784,421,634.75/191,290.65
  6. Step 6: Final answer
    x = 145,247.15

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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.