Home / 130,399.83-179,956.19-73,041.62

Finding the Fourth Proportional to 130,399.83, 179,956.19 and 73,041.62

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Solution

The fourth proportional to 130,399.83, 179,956.19 and 73,041.62 is: 100,799.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,399.83 : 179,956.19 = 73,041.62 : x
  2. Step 2: Convert to fraction form
    130,399.83/179,956.19 = 73,041.62/x
  3. Step 3: Cross multiply
    130,399.83x = 179,956.19 × 73,041.62
  4. Step 4: Simplify right side
    130,399.83x = 13,144,290,929.45
  5. Step 5: Solve for x
    x = 13,144,290,929.45/130,399.83
  6. Step 6: Final answer
    x = 100,799.91

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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.