Home / 191,293.65-263,987.25-105,253.76

Finding the Fourth Proportional to 191,293.65, 263,987.25 and 105,253.76

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Solution

The fourth proportional to 191,293.65, 263,987.25 and 105,253.76 is: 145,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,293.65 : 263,987.25 = 105,253.76 : x
  2. Step 2: Convert to fraction form
    191,293.65/263,987.25 = 105,253.76/x
  3. Step 3: Cross multiply
    191,293.65x = 263,987.25 × 105,253.76
  4. Step 4: Simplify right side
    191,293.65x = 27,785,650,654.56
  5. Step 5: Solve for x
    x = 27,785,650,654.56/191,293.65
  6. Step 6: Final answer
    x = 145,251.30

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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.