Home / 174,931.20-262,396.80-139,939.20

Finding the Fourth Proportional to 174,931.20, 262,396.80 and 139,939.20

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Solution

The fourth proportional to 174,931.20, 262,396.80 and 139,939.20 is: 209,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,931.20 : 262,396.80 = 139,939.20 : x
  2. Step 2: Convert to fraction form
    174,931.20/262,396.80 = 139,939.20/x
  3. Step 3: Cross multiply
    174,931.20x = 262,396.80 × 139,939.20
  4. Step 4: Simplify right side
    174,931.20x = 36,719,598,274.56
  5. Step 5: Solve for x
    x = 36,719,598,274.56/174,931.20
  6. Step 6: Final answer
    x = 209,908.80

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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.