Home / 139,628.08-192,684.63-75,964.42

Finding the Fourth Proportional to 139,628.08, 192,684.63 and 75,964.42

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Solution

The fourth proportional to 139,628.08, 192,684.63 and 75,964.42 is: 104,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628.08 : 192,684.63 = 75,964.42 : x
  2. Step 2: Convert to fraction form
    139,628.08/192,684.63 = 75,964.42/x
  3. Step 3: Cross multiply
    139,628.08x = 192,684.63 × 75,964.42
  4. Step 4: Simplify right side
    139,628.08x = 14,637,176,160.86
  5. Step 5: Solve for x
    x = 14,637,176,160.86/139,628.08
  6. Step 6: Final answer
    x = 104,829.75

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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.