Home / 145,087.20-218,116.80-125,841.60

Finding the Fourth Proportional to 145,087.20, 218,116.80 and 125,841.60

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Solution

The fourth proportional to 145,087.20, 218,116.80 and 125,841.60 is: 189,183.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,087.20 : 218,116.80 = 125,841.60 : x
  2. Step 2: Convert to fraction form
    145,087.20/218,116.80 = 125,841.60/x
  3. Step 3: Cross multiply
    145,087.20x = 218,116.80 × 125,841.60
  4. Step 4: Simplify right side
    145,087.20x = 27,448,167,098.88
  5. Step 5: Solve for x
    x = 27,448,167,098.88/145,087.20
  6. Step 6: Final answer
    x = 189,183.93

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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.