Home / 112,065.12-154,651.68-61,764.48

Finding the Fourth Proportional to 112,065.12, 154,651.68 and 61,764.48

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Solution

The fourth proportional to 112,065.12, 154,651.68 and 61,764.48 is: 85,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.12 : 154,651.68 = 61,764.48 : x
  2. Step 2: Convert to fraction form
    112,065.12/154,651.68 = 61,764.48/x
  3. Step 3: Cross multiply
    112,065.12x = 154,651.68 × 61,764.48
  4. Step 4: Simplify right side
    112,065.12x = 9,551,980,596.33
  5. Step 5: Solve for x
    x = 9,551,980,596.33/112,065.12
  6. Step 6: Final answer
    x = 85,235.98

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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.