Home / 134,794.56-186,034.08-78,223.68

Finding the Fourth Proportional to 134,794.56, 186,034.08 and 78,223.68

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Solution

The fourth proportional to 134,794.56, 186,034.08 and 78,223.68 is: 107,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,794.56 : 186,034.08 = 78,223.68 : x
  2. Step 2: Convert to fraction form
    134,794.56/186,034.08 = 78,223.68/x
  3. Step 3: Cross multiply
    134,794.56x = 186,034.08 × 78,223.68
  4. Step 4: Simplify right side
    134,794.56x = 14,552,270,343.01
  5. Step 5: Solve for x
    x = 14,552,270,343.01/134,794.56
  6. Step 6: Final answer
    x = 107,958.88

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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.