Home / 156,795.75-216,467.84-103,236.32

Finding the Fourth Proportional to 156,795.75, 216,467.84 and 103,236.32

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Solution

The fourth proportional to 156,795.75, 216,467.84 and 103,236.32 is: 142,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,795.75 : 216,467.84 = 103,236.32 : x
  2. Step 2: Convert to fraction form
    156,795.75/216,467.84 = 103,236.32/x
  3. Step 3: Cross multiply
    156,795.75x = 216,467.84 × 103,236.32
  4. Step 4: Simplify right side
    156,795.75x = 22,347,343,999.21
  5. Step 5: Solve for x
    x = 22,347,343,999.21/156,795.75
  6. Step 6: Final answer
    x = 142,525.19

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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.