Home / 120,963.84-166,916.76-69,977.52

Finding the Fourth Proportional to 120,963.84, 166,916.76 and 69,977.52

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Solution

The fourth proportional to 120,963.84, 166,916.76 and 69,977.52 is: 96,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,963.84 : 166,916.76 = 69,977.52 : x
  2. Step 2: Convert to fraction form
    120,963.84/166,916.76 = 69,977.52/x
  3. Step 3: Cross multiply
    120,963.84x = 166,916.76 × 69,977.52
  4. Step 4: Simplify right side
    120,963.84x = 11,680,420,911.24
  5. Step 5: Solve for x
    x = 11,680,420,911.24/120,963.84
  6. Step 6: Final answer
    x = 96,561.26

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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.