Home / 139,242.42-192,154.74-75,580.26

Finding the Fourth Proportional to 139,242.42, 192,154.74 and 75,580.26

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Solution

The fourth proportional to 139,242.42, 192,154.74 and 75,580.26 is: 104,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,242.42 : 192,154.74 = 75,580.26 : x
  2. Step 2: Convert to fraction form
    139,242.42/192,154.74 = 75,580.26/x
  3. Step 3: Cross multiply
    139,242.42x = 192,154.74 × 75,580.26
  4. Step 4: Simplify right side
    139,242.42x = 14,523,105,209.43
  5. Step 5: Solve for x
    x = 14,523,105,209.43/139,242.42
  6. Step 6: Final answer
    x = 104,300.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.