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Finding the Fourth Proportional to 158,448.88, 218,658.96 and 86,829.52

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Solution

The fourth proportional to 158,448.88, 218,658.96 and 86,829.52 is: 119,824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,448.88 : 218,658.96 = 86,829.52 : x
  2. Step 2: Convert to fraction form
    158,448.88/218,658.96 = 86,829.52/x
  3. Step 3: Cross multiply
    158,448.88x = 218,658.96 × 86,829.52
  4. Step 4: Simplify right side
    158,448.88x = 18,986,052,540.50
  5. Step 5: Solve for x
    x = 18,986,052,540.50/158,448.88
  6. Step 6: Final answer
    x = 119,824.47

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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.