Home / 191,768.10-287,652.15-145,112.10

Finding the Fourth Proportional to 191,768.10, 287,652.15 and 145,112.10

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Solution

The fourth proportional to 191,768.10, 287,652.15 and 145,112.10 is: 217,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,768.10 : 287,652.15 = 145,112.10 : x
  2. Step 2: Convert to fraction form
    191,768.10/287,652.15 = 145,112.10/x
  3. Step 3: Cross multiply
    191,768.10x = 287,652.15 × 145,112.10
  4. Step 4: Simplify right side
    191,768.10x = 41,741,807,556.02
  5. Step 5: Solve for x
    x = 41,741,807,556.02/191,768.10
  6. Step 6: Final answer
    x = 217,668.15

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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.