Home / 139,240.30-192,146.46-75,576.74

Finding the Fourth Proportional to 139,240.30, 192,146.46 and 75,576.74

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Solution

The fourth proportional to 139,240.30, 192,146.46 and 75,576.74 is: 104,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,240.30 : 192,146.46 = 75,576.74 : x
  2. Step 2: Convert to fraction form
    139,240.30/192,146.46 = 75,576.74/x
  3. Step 3: Cross multiply
    139,240.30x = 192,146.46 × 75,576.74
  4. Step 4: Simplify right side
    139,240.30x = 14,521,803,049.34
  5. Step 5: Solve for x
    x = 14,521,803,049.34/139,240.30
  6. Step 6: Final answer
    x = 104,293.10

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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.