Home / 139,267.52-192,259.68-107,365.76

Finding the Fourth Proportional to 139,267.52, 192,259.68 and 107,365.76

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Solution

The fourth proportional to 139,267.52, 192,259.68 and 107,365.76 is: 148,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,267.52 : 192,259.68 = 107,365.76 : x
  2. Step 2: Convert to fraction form
    139,267.52/192,259.68 = 107,365.76/x
  3. Step 3: Cross multiply
    139,267.52x = 192,259.68 × 107,365.76
  4. Step 4: Simplify right side
    139,267.52x = 20,642,106,660.56
  5. Step 5: Solve for x
    x = 20,642,106,660.56/139,267.52
  6. Step 6: Final answer
    x = 148,219.10

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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.