Home / 126,478.73-189,816.02-47,664.65

Finding the Fourth Proportional to 126,478.73, 189,816.02 and 47,664.65

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Solution

The fourth proportional to 126,478.73, 189,816.02 and 47,664.65 is: 71,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,478.73 : 189,816.02 = 47,664.65 : x
  2. Step 2: Convert to fraction form
    126,478.73/189,816.02 = 47,664.65/x
  3. Step 3: Cross multiply
    126,478.73x = 189,816.02 × 47,664.65
  4. Step 4: Simplify right side
    126,478.73x = 9,047,513,919.37
  5. Step 5: Solve for x
    x = 9,047,513,919.37/126,478.73
  6. Step 6: Final answer
    x = 71,533.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.