Home / 191,015.28-286,508.68-77,170.96

Finding the Fourth Proportional to 191,015.28, 286,508.68 and 77,170.96

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Solution

The fourth proportional to 191,015.28, 286,508.68 and 77,170.96 is: 115,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,015.28 : 286,508.68 = 77,170.96 : x
  2. Step 2: Convert to fraction form
    191,015.28/286,508.68 = 77,170.96/x
  3. Step 3: Cross multiply
    191,015.28x = 286,508.68 × 77,170.96
  4. Step 4: Simplify right side
    191,015.28x = 22,110,149,883.93
  5. Step 5: Solve for x
    x = 22,110,149,883.93/191,015.28
  6. Step 6: Final answer
    x = 115,750.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.