Home / 105,201.23-145,177.86-59,879.21

Finding the Fourth Proportional to 105,201.23, 145,177.86 and 59,879.21

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Solution

The fourth proportional to 105,201.23, 145,177.86 and 59,879.21 is: 82,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,201.23 : 145,177.86 = 59,879.21 : x
  2. Step 2: Convert to fraction form
    105,201.23/145,177.86 = 59,879.21/x
  3. Step 3: Cross multiply
    105,201.23x = 145,177.86 × 59,879.21
  4. Step 4: Simplify right side
    105,201.23x = 8,693,135,266.89
  5. Step 5: Solve for x
    x = 8,693,135,266.89/105,201.23
  6. Step 6: Final answer
    x = 82,633.40

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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.