Home / 239,721.58-359,742.90-99,480.34

Finding the Fourth Proportional to 239,721.58, 359,742.90 and 99,480.34

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Solution

The fourth proportional to 239,721.58, 359,742.90 and 99,480.34 is: 149,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,721.58 : 359,742.90 = 99,480.34 : x
  2. Step 2: Convert to fraction form
    239,721.58/359,742.90 = 99,480.34/x
  3. Step 3: Cross multiply
    239,721.58x = 359,742.90 × 99,480.34
  4. Step 4: Simplify right side
    239,721.58x = 35,787,346,004.59
  5. Step 5: Solve for x
    x = 35,787,346,004.59/239,721.58
  6. Step 6: Final answer
    x = 149,287.13

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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.