Home / 140,189.10-210,262.88-45,427.56

Finding the Fourth Proportional to 140,189.10, 210,262.88 and 45,427.56

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Solution

The fourth proportional to 140,189.10, 210,262.88 and 45,427.56 is: 68,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,189.10 : 210,262.88 = 45,427.56 : x
  2. Step 2: Convert to fraction form
    140,189.10/210,262.88 = 45,427.56/x
  3. Step 3: Cross multiply
    140,189.10x = 210,262.88 × 45,427.56
  4. Step 4: Simplify right side
    140,189.10x = 9,551,728,545.66
  5. Step 5: Solve for x
    x = 9,551,728,545.66/140,189.10
  6. Step 6: Final answer
    x = 68,134.60

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1.5x scale

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.