Home / 120,916.77-166,875.42-67,200.40

Finding the Fourth Proportional to 120,916.77, 166,875.42 and 67,200.40

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Solution

The fourth proportional to 120,916.77, 166,875.42 and 67,200.40 is: 92,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,916.77 : 166,875.42 = 67,200.40 : x
  2. Step 2: Convert to fraction form
    120,916.77/166,875.42 = 67,200.40/x
  3. Step 3: Cross multiply
    120,916.77x = 166,875.42 × 67,200.40
  4. Step 4: Simplify right side
    120,916.77x = 11,214,094,974.17
  5. Step 5: Solve for x
    x = 11,214,094,974.17/120,916.77
  6. Step 6: Final answer
    x = 92,742.26

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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.