Home / 161,138.07-241,624.08-72,315.42

Finding the Fourth Proportional to 161,138.07, 241,624.08 and 72,315.42

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Solution

The fourth proportional to 161,138.07, 241,624.08 and 72,315.42 is: 108,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,138.07 : 241,624.08 = 72,315.42 : x
  2. Step 2: Convert to fraction form
    161,138.07/241,624.08 = 72,315.42/x
  3. Step 3: Cross multiply
    161,138.07x = 241,624.08 × 72,315.42
  4. Step 4: Simplify right side
    161,138.07x = 17,473,146,827.31
  5. Step 5: Solve for x
    x = 17,473,146,827.31/161,138.07
  6. Step 6: Final answer
    x = 108,435.87

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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.