Home / 210,143.74-289,986.48-119,521.72

Finding the Fourth Proportional to 210,143.74, 289,986.48 and 119,521.72

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Solution

The fourth proportional to 210,143.74, 289,986.48 and 119,521.72 is: 164,933.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,143.74 : 289,986.48 = 119,521.72 : x
  2. Step 2: Convert to fraction form
    210,143.74/289,986.48 = 119,521.72/x
  3. Step 3: Cross multiply
    210,143.74x = 289,986.48 × 119,521.72
  4. Step 4: Simplify right side
    210,143.74x = 34,659,682,866.35
  5. Step 5: Solve for x
    x = 34,659,682,866.35/210,143.74
  6. Step 6: Final answer
    x = 164,933.22

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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.