Home / 139,827.87-192,962.39-76,165.65

Finding the Fourth Proportional to 139,827.87, 192,962.39 and 76,165.65

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Solution

The fourth proportional to 139,827.87, 192,962.39 and 76,165.65 is: 105,108.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,827.87 : 192,962.39 = 76,165.65 : x
  2. Step 2: Convert to fraction form
    139,827.87/192,962.39 = 76,165.65/x
  3. Step 3: Cross multiply
    139,827.87x = 192,962.39 × 76,165.65
  4. Step 4: Simplify right side
    139,827.87x = 14,697,105,479.08
  5. Step 5: Solve for x
    x = 14,697,105,479.08/139,827.87
  6. Step 6: Final answer
    x = 105,108.56

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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.