Home / 105,632.91-158,342.58-66,217.64

Finding the Fourth Proportional to 105,632.91, 158,342.58 and 66,217.64

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Solution

The fourth proportional to 105,632.91, 158,342.58 and 66,217.64 is: 99,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,632.91 : 158,342.58 = 66,217.64 : x
  2. Step 2: Convert to fraction form
    105,632.91/158,342.58 = 66,217.64/x
  3. Step 3: Cross multiply
    105,632.91x = 158,342.58 × 66,217.64
  4. Step 4: Simplify right side
    105,632.91x = 10,485,071,167.40
  5. Step 5: Solve for x
    x = 10,485,071,167.40/105,632.91
  6. Step 6: Final answer
    x = 99,259.51

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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.