Home / 239,719.80-359,529.30-121,279.80

Finding the Fourth Proportional to 239,719.80, 359,529.30 and 121,279.80

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Solution

The fourth proportional to 239,719.80, 359,529.30 and 121,279.80 is: 181,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,719.80 : 359,529.30 = 121,279.80 : x
  2. Step 2: Convert to fraction form
    239,719.80/359,529.30 = 121,279.80/x
  3. Step 3: Cross multiply
    239,719.80x = 359,529.30 × 121,279.80
  4. Step 4: Simplify right side
    239,719.80x = 43,603,641,598.14
  5. Step 5: Solve for x
    x = 43,603,641,598.14/239,719.80
  6. Step 6: Final answer
    x = 181,894.20

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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.