Home / 112,060.80-167,864.40-69,811.20

Finding the Fourth Proportional to 112,060.80, 167,864.40 and 69,811.20

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Solution

The fourth proportional to 112,060.80, 167,864.40 and 69,811.20 is: 104,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,060.80 : 167,864.40 = 69,811.20 : x
  2. Step 2: Convert to fraction form
    112,060.80/167,864.40 = 69,811.20/x
  3. Step 3: Cross multiply
    112,060.80x = 167,864.40 × 69,811.20
  4. Step 4: Simplify right side
    112,060.80x = 11,718,815,201.28
  5. Step 5: Solve for x
    x = 11,718,815,201.28/112,060.80
  6. Step 6: Final answer
    x = 104,575.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.