Home / 112,188.78-168,139.17-48,991.77

Finding the Fourth Proportional to 112,188.78, 168,139.17 and 48,991.77

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Solution

The fourth proportional to 112,188.78, 168,139.17 and 48,991.77 is: 73,424.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,188.78 : 168,139.17 = 48,991.77 : x
  2. Step 2: Convert to fraction form
    112,188.78/168,139.17 = 48,991.77/x
  3. Step 3: Cross multiply
    112,188.78x = 168,139.17 × 48,991.77
  4. Step 4: Simplify right side
    112,188.78x = 8,237,435,544.63
  5. Step 5: Solve for x
    x = 8,237,435,544.63/112,188.78
  6. Step 6: Final answer
    x = 73,424.77

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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.