Home / 161,409.04-241,903.80-90,328.72

Finding the Fourth Proportional to 161,409.04, 241,903.80 and 90,328.72

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Solution

The fourth proportional to 161,409.04, 241,903.80 and 90,328.72 is: 135,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,409.04 : 241,903.80 = 90,328.72 : x
  2. Step 2: Convert to fraction form
    161,409.04/241,903.80 = 90,328.72/x
  3. Step 3: Cross multiply
    161,409.04x = 241,903.80 × 90,328.72
  4. Step 4: Simplify right side
    161,409.04x = 21,850,860,617.14
  5. Step 5: Solve for x
    x = 21,850,860,617.14/161,409.04
  6. Step 6: Final answer
    x = 135,375.69

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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.