Home / 140,300.78-210,482.33-40,453.20

Finding the Fourth Proportional to 140,300.78, 210,482.33 and 40,453.20

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Solution

The fourth proportional to 140,300.78, 210,482.33 and 40,453.20 is: 60,688.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,300.78 : 210,482.33 = 40,453.20 : x
  2. Step 2: Convert to fraction form
    140,300.78/210,482.33 = 40,453.20/x
  3. Step 3: Cross multiply
    140,300.78x = 210,482.33 × 40,453.20
  4. Step 4: Simplify right side
    140,300.78x = 8,514,683,589.69
  5. Step 5: Solve for x
    x = 8,514,683,589.69/140,300.78
  6. Step 6: Final answer
    x = 60,688.79

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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.