Home / 191,170.68-286,790.62-78,788.32

Finding the Fourth Proportional to 191,170.68, 286,790.62 and 78,788.32

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Solution

The fourth proportional to 191,170.68, 286,790.62 and 78,788.32 is: 118,196.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,170.68 : 286,790.62 = 78,788.32 : x
  2. Step 2: Convert to fraction form
    191,170.68/286,790.62 = 78,788.32/x
  3. Step 3: Cross multiply
    191,170.68x = 286,790.62 × 78,788.32
  4. Step 4: Simplify right side
    191,170.68x = 22,595,751,141.56
  5. Step 5: Solve for x
    x = 22,595,751,141.56/191,170.68
  6. Step 6: Final answer
    x = 118,196.74

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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.