Home / 99,201.61-136,899.85-53,879.62

Finding the Fourth Proportional to 99,201.61, 136,899.85 and 53,879.62

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Solution

The fourth proportional to 99,201.61, 136,899.85 and 53,879.62 is: 74,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,201.61 : 136,899.85 = 53,879.62 : x
  2. Step 2: Convert to fraction form
    99,201.61/136,899.85 = 53,879.62/x
  3. Step 3: Cross multiply
    99,201.61x = 136,899.85 × 53,879.62
  4. Step 4: Simplify right side
    99,201.61x = 7,376,111,896.06
  5. Step 5: Solve for x
    x = 7,376,111,896.06/99,201.61
  6. Step 6: Final answer
    x = 74,354.76

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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.