Home / 156,154.64-215,493.36-84,534.60

Finding the Fourth Proportional to 156,154.64, 215,493.36 and 84,534.60

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Solution

The fourth proportional to 156,154.64, 215,493.36 and 84,534.60 is: 116,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.64 : 215,493.36 = 84,534.60 : x
  2. Step 2: Convert to fraction form
    156,154.64/215,493.36 = 84,534.60/x
  3. Step 3: Cross multiply
    156,154.64x = 215,493.36 × 84,534.60
  4. Step 4: Simplify right side
    156,154.64x = 18,216,644,990.26
  5. Step 5: Solve for x
    x = 18,216,644,990.26/156,154.64
  6. Step 6: Final answer
    x = 116,657.73

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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.