Home / 130,381.28-179,924.72-73,021.12

Finding the Fourth Proportional to 130,381.28, 179,924.72 and 73,021.12

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Solution

The fourth proportional to 130,381.28, 179,924.72 and 73,021.12 is: 100,768.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,381.28 : 179,924.72 = 73,021.12 : x
  2. Step 2: Convert to fraction form
    130,381.28/179,924.72 = 73,021.12/x
  3. Step 3: Cross multiply
    130,381.28x = 179,924.72 × 73,021.12
  4. Step 4: Simplify right side
    130,381.28x = 13,138,304,570.09
  5. Step 5: Solve for x
    x = 13,138,304,570.09/130,381.28
  6. Step 6: Final answer
    x = 100,768.34

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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.