Home / 140,086.38-210,156.57-45,340.08

Finding the Fourth Proportional to 140,086.38, 210,156.57 and 45,340.08

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Solution

The fourth proportional to 140,086.38, 210,156.57 and 45,340.08 is: 68,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,086.38 : 210,156.57 = 45,340.08 : x
  2. Step 2: Convert to fraction form
    140,086.38/210,156.57 = 45,340.08/x
  3. Step 3: Cross multiply
    140,086.38x = 210,156.57 × 45,340.08
  4. Step 4: Simplify right side
    140,086.38x = 9,528,515,696.33
  5. Step 5: Solve for x
    x = 9,528,515,696.33/140,086.38
  6. Step 6: Final answer
    x = 68,018.86

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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.