Home / 239,519.80-359,571.30-121,130.20

Finding the Fourth Proportional to 239,519.80, 359,571.30 and 121,130.20

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Solution

The fourth proportional to 239,519.80, 359,571.30 and 121,130.20 is: 181,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,519.80 : 359,571.30 = 121,130.20 : x
  2. Step 2: Convert to fraction form
    239,519.80/359,571.30 = 121,130.20/x
  3. Step 3: Cross multiply
    239,519.80x = 359,571.30 × 121,130.20
  4. Step 4: Simplify right side
    239,519.80x = 43,554,943,483.26
  5. Step 5: Solve for x
    x = 43,554,943,483.26/239,519.80
  6. Step 6: Final answer
    x = 181,842.77

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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.