Home / 163,285.56-225,318.65-91,651.59

Finding the Fourth Proportional to 163,285.56, 225,318.65 and 91,651.59

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Solution

The fourth proportional to 163,285.56, 225,318.65 and 91,651.59 is: 126,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,285.56 : 225,318.65 = 91,651.59 : x
  2. Step 2: Convert to fraction form
    163,285.56/225,318.65 = 91,651.59/x
  3. Step 3: Cross multiply
    163,285.56x = 225,318.65 × 91,651.59
  4. Step 4: Simplify right side
    163,285.56x = 20,650,812,529.15
  5. Step 5: Solve for x
    x = 20,650,812,529.15/163,285.56
  6. Step 6: Final answer
    x = 126,470.54

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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.