Home / 162,108.96-243,135.09-73,341.60

Finding the Fourth Proportional to 162,108.96, 243,135.09 and 73,341.60

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Solution

The fourth proportional to 162,108.96, 243,135.09 and 73,341.60 is: 109,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,108.96 : 243,135.09 = 73,341.60 : x
  2. Step 2: Convert to fraction form
    162,108.96/243,135.09 = 73,341.60/x
  3. Step 3: Cross multiply
    162,108.96x = 243,135.09 × 73,341.60
  4. Step 4: Simplify right side
    162,108.96x = 17,831,916,516.74
  5. Step 5: Solve for x
    x = 17,831,916,516.74/162,108.96
  6. Step 6: Final answer
    x = 109,999.57

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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.