Home / 156,941.37-216,576.52-85,323.20

Finding the Fourth Proportional to 156,941.37, 216,576.52 and 85,323.20

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Solution

The fourth proportional to 156,941.37, 216,576.52 and 85,323.20 is: 117,744.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.37 : 216,576.52 = 85,323.20 : x
  2. Step 2: Convert to fraction form
    156,941.37/216,576.52 = 85,323.20/x
  3. Step 3: Cross multiply
    156,941.37x = 216,576.52 × 85,323.20
  4. Step 4: Simplify right side
    156,941.37x = 18,479,001,731.26
  5. Step 5: Solve for x
    x = 18,479,001,731.26/156,941.37
  6. Step 6: Final answer
    x = 117,744.62

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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.