Home / 139,239.55-192,154.05-75,577.21

Finding the Fourth Proportional to 139,239.55, 192,154.05 and 75,577.21

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Solution

The fourth proportional to 139,239.55, 192,154.05 and 75,577.21 is: 104,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,239.55 : 192,154.05 = 75,577.21 : x
  2. Step 2: Convert to fraction form
    139,239.55/192,154.05 = 75,577.21/x
  3. Step 3: Cross multiply
    139,239.55x = 192,154.05 × 75,577.21
  4. Step 4: Simplify right side
    139,239.55x = 14,522,466,989.20
  5. Step 5: Solve for x
    x = 14,522,466,989.20/139,239.55
  6. Step 6: Final answer
    x = 104,298.43

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1.5x scale

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.