Home / 156,973.28-216,622.06-85,353.36

Finding the Fourth Proportional to 156,973.28, 216,622.06 and 85,353.36

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Solution

The fourth proportional to 156,973.28, 216,622.06 and 85,353.36 is: 117,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,973.28 : 216,622.06 = 85,353.36 : x
  2. Step 2: Convert to fraction form
    156,973.28/216,622.06 = 85,353.36/x
  3. Step 3: Cross multiply
    156,973.28x = 216,622.06 × 85,353.36
  4. Step 4: Simplify right side
    156,973.28x = 18,489,420,671.12
  5. Step 5: Solve for x
    x = 18,489,420,671.12/156,973.28
  6. Step 6: Final answer
    x = 117,787.06

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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.