Home / 112,769.08-155,546.30-72,533.76

Finding the Fourth Proportional to 112,769.08, 155,546.30 and 72,533.76

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Solution

The fourth proportional to 112,769.08, 155,546.30 and 72,533.76 is: 100,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,769.08 : 155,546.30 = 72,533.76 : x
  2. Step 2: Convert to fraction form
    112,769.08/155,546.30 = 72,533.76/x
  3. Step 3: Cross multiply
    112,769.08x = 155,546.30 × 72,533.76
  4. Step 4: Simplify right side
    112,769.08x = 11,282,357,993.09
  5. Step 5: Solve for x
    x = 11,282,357,993.09/112,769.08
  6. Step 6: Final answer
    x = 100,048.33

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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.