Home / 139,225.88-192,126.84-75,562.40

Finding the Fourth Proportional to 139,225.88, 192,126.84 and 75,562.40

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Solution

The fourth proportional to 139,225.88, 192,126.84 and 75,562.40 is: 104,273.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,225.88 : 192,126.84 = 75,562.40 : x
  2. Step 2: Convert to fraction form
    139,225.88/192,126.84 = 75,562.40/x
  3. Step 3: Cross multiply
    139,225.88x = 192,126.84 × 75,562.40
  4. Step 4: Simplify right side
    139,225.88x = 14,517,565,134.82
  5. Step 5: Solve for x
    x = 14,517,565,134.82/139,225.88
  6. Step 6: Final answer
    x = 104,273.47

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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.