Home / 112,315.08-154,992.42-74,028.36

Finding the Fourth Proportional to 112,315.08, 154,992.42 and 74,028.36

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Solution

The fourth proportional to 112,315.08, 154,992.42 and 74,028.36 is: 102,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,315.08 : 154,992.42 = 74,028.36 : x
  2. Step 2: Convert to fraction form
    112,315.08/154,992.42 = 74,028.36/x
  3. Step 3: Cross multiply
    112,315.08x = 154,992.42 × 74,028.36
  4. Step 4: Simplify right side
    112,315.08x = 11,473,834,665.03
  5. Step 5: Solve for x
    x = 11,473,834,665.03/112,315.08
  6. Step 6: Final answer
    x = 102,157.56

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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.