Home / 140,112.32-210,263.68-57,021.44

Finding the Fourth Proportional to 140,112.32, 210,263.68 and 57,021.44

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Solution

The fourth proportional to 140,112.32, 210,263.68 and 57,021.44 is: 85,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,112.32 : 210,263.68 = 57,021.44 : x
  2. Step 2: Convert to fraction form
    140,112.32/210,263.68 = 57,021.44/x
  3. Step 3: Cross multiply
    140,112.32x = 210,263.68 × 57,021.44
  4. Step 4: Simplify right side
    140,112.32x = 11,989,537,813.30
  5. Step 5: Solve for x
    x = 11,989,537,813.30/140,112.32
  6. Step 6: Final answer
    x = 85,570.90

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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.