Home / 140,470.12-210,705.40-57,364.12

Finding the Fourth Proportional to 140,470.12, 210,705.40 and 57,364.12

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Solution

The fourth proportional to 140,470.12, 210,705.40 and 57,364.12 is: 86,046.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,470.12 : 210,705.40 = 57,364.12 : x
  2. Step 2: Convert to fraction form
    140,470.12/210,705.40 = 57,364.12/x
  3. Step 3: Cross multiply
    140,470.12x = 210,705.40 × 57,364.12
  4. Step 4: Simplify right side
    140,470.12x = 12,086,929,850.25
  5. Step 5: Solve for x
    x = 12,086,929,850.25/140,470.12
  6. Step 6: Final answer
    x = 86,046.27

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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.