Home / 112,619.68-155,408.72-62,315.68

Finding the Fourth Proportional to 112,619.68, 155,408.72 and 62,315.68

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Solution

The fourth proportional to 112,619.68, 155,408.72 and 62,315.68 is: 85,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,619.68 : 155,408.72 = 62,315.68 : x
  2. Step 2: Convert to fraction form
    112,619.68/155,408.72 = 62,315.68/x
  3. Step 3: Cross multiply
    112,619.68x = 155,408.72 × 62,315.68
  4. Step 4: Simplify right side
    112,619.68x = 9,684,400,064.73
  5. Step 5: Solve for x
    x = 9,684,400,064.73/112,619.68
  6. Step 6: Final answer
    x = 85,992.08

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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.