Home / 191,455.36-287,183.08-86,151.32

Finding the Fourth Proportional to 191,455.36, 287,183.08 and 86,151.32

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Solution

The fourth proportional to 191,455.36, 287,183.08 and 86,151.32 is: 129,227.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,455.36 : 287,183.08 = 86,151.32 : x
  2. Step 2: Convert to fraction form
    191,455.36/287,183.08 = 86,151.32/x
  3. Step 3: Cross multiply
    191,455.36x = 287,183.08 × 86,151.32
  4. Step 4: Simplify right side
    191,455.36x = 24,741,201,423.67
  5. Step 5: Solve for x
    x = 24,741,201,423.67/191,455.36
  6. Step 6: Final answer
    x = 129,227.00

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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.