Home / 139,628.04-192,688.01-83,028.48

Finding the Fourth Proportional to 139,628.04, 192,688.01 and 83,028.48

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Solution

The fourth proportional to 139,628.04, 192,688.01 and 83,028.48 is: 114,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628.04 : 192,688.01 = 83,028.48 : x
  2. Step 2: Convert to fraction form
    139,628.04/192,688.01 = 83,028.48/x
  3. Step 3: Cross multiply
    139,628.04x = 192,688.01 × 83,028.48
  4. Step 4: Simplify right side
    139,628.04x = 15,998,592,169.38
  5. Step 5: Solve for x
    x = 15,998,592,169.38/139,628.04
  6. Step 6: Final answer
    x = 114,580.08

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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.