Home / 123,464.16-170,408.49-69,780.31

Finding the Fourth Proportional to 123,464.16, 170,408.49 and 69,780.31

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Solution

The fourth proportional to 123,464.16, 170,408.49 and 69,780.31 is: 96,312.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,464.16 : 170,408.49 = 69,780.31 : x
  2. Step 2: Convert to fraction form
    123,464.16/170,408.49 = 69,780.31/x
  3. Step 3: Cross multiply
    123,464.16x = 170,408.49 × 69,780.31
  4. Step 4: Simplify right side
    123,464.16x = 11,891,157,258.83
  5. Step 5: Solve for x
    x = 11,891,157,258.83/123,464.16
  6. Step 6: Final answer
    x = 96,312.62

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1.5x scale

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.