Home / 139,730.04-192,400.44-105,324.72

Finding the Fourth Proportional to 139,730.04, 192,400.44 and 105,324.72

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Solution

The fourth proportional to 139,730.04, 192,400.44 and 105,324.72 is: 145,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,730.04 : 192,400.44 = 105,324.72 : x
  2. Step 2: Convert to fraction form
    139,730.04/192,400.44 = 105,324.72/x
  3. Step 3: Cross multiply
    139,730.04x = 192,400.44 × 105,324.72
  4. Step 4: Simplify right side
    139,730.04x = 20,264,522,470.88
  5. Step 5: Solve for x
    x = 20,264,522,470.88/139,730.04
  6. Step 6: Final answer
    x = 145,026.24

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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.