Home / 123,579.34-170,546.85-69,869.32

Finding the Fourth Proportional to 123,579.34, 170,546.85 and 69,869.32

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Solution

The fourth proportional to 123,579.34, 170,546.85 and 69,869.32 is: 96,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,579.34 : 170,546.85 = 69,869.32 : x
  2. Step 2: Convert to fraction form
    123,579.34/170,546.85 = 69,869.32/x
  3. Step 3: Cross multiply
    123,579.34x = 170,546.85 × 69,869.32
  4. Step 4: Simplify right side
    123,579.34x = 11,915,992,011.27
  5. Step 5: Solve for x
    x = 11,915,992,011.27/123,579.34
  6. Step 6: Final answer
    x = 96,423.82

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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.