Home / 191,784.12-264,684.72-115,342.20

Finding the Fourth Proportional to 191,784.12, 264,684.72 and 115,342.20

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Solution

The fourth proportional to 191,784.12, 264,684.72 and 115,342.20 is: 159,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,784.12 : 264,684.72 = 115,342.20 : x
  2. Step 2: Convert to fraction form
    191,784.12/264,684.72 = 115,342.20/x
  3. Step 3: Cross multiply
    191,784.12x = 264,684.72 × 115,342.20
  4. Step 4: Simplify right side
    191,784.12x = 30,529,317,911.18
  5. Step 5: Solve for x
    x = 30,529,317,911.18/191,784.12
  6. Step 6: Final answer
    x = 159,185.85

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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.