Home / 140,320.42-210,431.12-40,453.70

Finding the Fourth Proportional to 140,320.42, 210,431.12 and 40,453.70

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Solution

The fourth proportional to 140,320.42, 210,431.12 and 40,453.70 is: 60,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,320.42 : 210,431.12 = 40,453.70 : x
  2. Step 2: Convert to fraction form
    140,320.42/210,431.12 = 40,453.70/x
  3. Step 3: Cross multiply
    140,320.42x = 210,431.12 × 40,453.70
  4. Step 4: Simplify right side
    140,320.42x = 8,512,716,144.72
  5. Step 5: Solve for x
    x = 8,512,716,144.72/140,320.42
  6. Step 6: Final answer
    x = 60,666.27

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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.