Home / 113,165.22-156,150.66-65,409.36

Finding the Fourth Proportional to 113,165.22, 156,150.66 and 65,409.36

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Solution

The fourth proportional to 113,165.22, 156,150.66 and 65,409.36 is: 90,254.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,165.22 : 156,150.66 = 65,409.36 : x
  2. Step 2: Convert to fraction form
    113,165.22/156,150.66 = 65,409.36/x
  3. Step 3: Cross multiply
    113,165.22x = 156,150.66 × 65,409.36
  4. Step 4: Simplify right side
    113,165.22x = 10,213,714,734.18
  5. Step 5: Solve for x
    x = 10,213,714,734.18/113,165.22
  6. Step 6: Final answer
    x = 90,254.89

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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.