Home / 156,962.56-216,607.22-85,342.60

Finding the Fourth Proportional to 156,962.56, 216,607.22 and 85,342.60

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Solution

The fourth proportional to 156,962.56, 216,607.22 and 85,342.60 is: 117,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,962.56 : 216,607.22 = 85,342.60 : x
  2. Step 2: Convert to fraction form
    156,962.56/216,607.22 = 85,342.60/x
  3. Step 3: Cross multiply
    156,962.56x = 216,607.22 × 85,342.60
  4. Step 4: Simplify right side
    156,962.56x = 18,485,823,333.57
  5. Step 5: Solve for x
    x = 18,485,823,333.57/156,962.56
  6. Step 6: Final answer
    x = 117,772.18

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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.