Home / 161,411.04-241,906.80-90,330.72

Finding the Fourth Proportional to 161,411.04, 241,906.80 and 90,330.72

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Solution

The fourth proportional to 161,411.04, 241,906.80 and 90,330.72 is: 135,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,411.04 : 241,906.80 = 90,330.72 : x
  2. Step 2: Convert to fraction form
    161,411.04/241,906.80 = 90,330.72/x
  3. Step 3: Cross multiply
    161,411.04x = 241,906.80 × 90,330.72
  4. Step 4: Simplify right side
    161,411.04x = 21,851,615,416.90
  5. Step 5: Solve for x
    x = 21,851,615,416.90/161,411.04
  6. Step 6: Final answer
    x = 135,378.69

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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.