Home / 140,561.40-210,842.10-127,428.60

Finding the Fourth Proportional to 140,561.40, 210,842.10 and 127,428.60

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Solution

The fourth proportional to 140,561.40, 210,842.10 and 127,428.60 is: 191,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,561.40 : 210,842.10 = 127,428.60 : x
  2. Step 2: Convert to fraction form
    140,561.40/210,842.10 = 127,428.60/x
  3. Step 3: Cross multiply
    140,561.40x = 210,842.10 × 127,428.60
  4. Step 4: Simplify right side
    140,561.40x = 26,867,313,624.06
  5. Step 5: Solve for x
    x = 26,867,313,624.06/140,561.40
  6. Step 6: Final answer
    x = 191,142.90

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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.