Home / 139,442.42-192,432.04-75,780.23

Finding the Fourth Proportional to 139,442.42, 192,432.04 and 75,780.23

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Solution

The fourth proportional to 139,442.42, 192,432.04 and 75,780.23 is: 104,577.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,442.42 : 192,432.04 = 75,780.23 : x
  2. Step 2: Convert to fraction form
    139,442.42/192,432.04 = 75,780.23/x
  3. Step 3: Cross multiply
    139,442.42x = 192,432.04 × 75,780.23
  4. Step 4: Simplify right side
    139,442.42x = 14,582,543,098.96
  5. Step 5: Solve for x
    x = 14,582,543,098.96/139,442.42
  6. Step 6: Final answer
    x = 104,577.52

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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.