Home / 142,392.06-196,504.97-78,732.13

Finding the Fourth Proportional to 142,392.06, 196,504.97 and 78,732.13

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Solution

The fourth proportional to 142,392.06, 196,504.97 and 78,732.13 is: 108,652.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,392.06 : 196,504.97 = 78,732.13 : x
  2. Step 2: Convert to fraction form
    142,392.06/196,504.97 = 78,732.13/x
  3. Step 3: Cross multiply
    142,392.06x = 196,504.97 × 78,732.13
  4. Step 4: Simplify right side
    142,392.06x = 15,471,254,843.69
  5. Step 5: Solve for x
    x = 15,471,254,843.69/142,392.06
  6. Step 6: Final answer
    x = 108,652.51

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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.