Home / 144,986.60-218,063.10-129,823.40

Finding the Fourth Proportional to 144,986.60, 218,063.10 and 129,823.40

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Solution

The fourth proportional to 144,986.60, 218,063.10 and 129,823.40 is: 195,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,986.60 : 218,063.10 = 129,823.40 : x
  2. Step 2: Convert to fraction form
    144,986.60/218,063.10 = 129,823.40/x
  3. Step 3: Cross multiply
    144,986.60x = 218,063.10 × 129,823.40
  4. Step 4: Simplify right side
    144,986.60x = 28,309,693,056.54
  5. Step 5: Solve for x
    x = 28,309,693,056.54/144,986.60
  6. Step 6: Final answer
    x = 195,257.31

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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.