Home / 112,709.76-155,544.32-62,408.76

Finding the Fourth Proportional to 112,709.76, 155,544.32 and 62,408.76

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Solution

The fourth proportional to 112,709.76, 155,544.32 and 62,408.76 is: 86,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,709.76 : 155,544.32 = 62,408.76 : x
  2. Step 2: Convert to fraction form
    112,709.76/155,544.32 = 62,408.76/x
  3. Step 3: Cross multiply
    112,709.76x = 155,544.32 × 62,408.76
  4. Step 4: Simplify right side
    112,709.76x = 9,707,328,136.24
  5. Step 5: Solve for x
    x = 9,707,328,136.24/112,709.76
  6. Step 6: Final answer
    x = 86,126.77

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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.