Home / 140,579.60-210,869.40-127,020.20

Finding the Fourth Proportional to 140,579.60, 210,869.40 and 127,020.20

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Solution

The fourth proportional to 140,579.60, 210,869.40 and 127,020.20 is: 190,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,579.60 : 210,869.40 = 127,020.20 : x
  2. Step 2: Convert to fraction form
    140,579.60/210,869.40 = 127,020.20/x
  3. Step 3: Cross multiply
    140,579.60x = 210,869.40 × 127,020.20
  4. Step 4: Simplify right side
    140,579.60x = 26,784,673,361.88
  5. Step 5: Solve for x
    x = 26,784,673,361.88/140,579.60
  6. Step 6: Final answer
    x = 190,530.30

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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.